Powder crusher
Publish: 2021-04-24 02:49:31
1. Unit 1 basic structure and characteristics of ancient Chinese economy lesson 1 developed ancient agriculture Multiple choice questions
question number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
} answers
C
C
d
d
C
d
C
a
d
b
b
b
b (1) the above materials reflect the proction mode of small-scale peasant economy in ancient China. This mode of proction first appeared in the spring and Autumn period. The progress of proction tools and farming technology is the reason for its emergence 2) The characteristics of this mode of proction are men's farming and women's weaving, and self-sufficiency 3) Self employed farmers are the main undertakers of taxes and corvee of the state, and the burden is heavy; Farmers' proction scale is small, the means of proction is limited, it is difficult to expand reproction, and the ability to resist natural and man-made disasters is poor. The small-scale peasant economy is very fragile, and the self-employed peasants often go bankrupt because of floods and droughts or the rapid levy of taxes
17. The original agriculture was just sowing and harvesting at first, and then slash and burn cultivation was adopted. With the emergence of proction tools such as Song Dynasty, seven or eight thousand years ago, China's agriculture entered the era of "ploughing" or "stone hoeing"; During the Shang and Zhou dynasties, there were a small number of bronze tools and farming tools, and they mastered the techniques of irrigation and drainage, fertilization, weeding and pest control; During the spring and Autumn period and the Warring States period, the use and popularization of iron and cattle farming, and the development of fertilization and irrigation technology marked the formation of iron plough cattle farming, a traditional farming method in ancient China
basic characteristics: independent development, self-contained system; intensive and meticulous farming; provide for oneself. Family is the basic unit of proction and life; Farmers have less means of proction and intensive farming; The combination of agriculture and cottage instry is a self-sufficient natural economy
I Multiple choice questions
lesson 2 progress of ancient handicraft instry
question number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1 answer
C
b
b
d
a
b
C
d
b
a
b
d
b 2、 Non multiple choice questions
16. (1) state owned handicraft instry, household handicraft instry and private handicraft instry 2) The government operates directly and carries out centralized large-scale workshop proction 3) Self sufficiency 4) The seeds of capitalism appeared
17. Development characteristics: ① the state-owned handicraft instry is developed. For example, metallurgical instry is leading the world; ② Folk handicraft instry is hard to operate. For example: Huang Daopo's contribution to
cotton textile instry; ③ It is famous all over the world. Examples: "silk country", "Silk Road" and "porcelain country"< The development of ancient commerce Multiple choice
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
"answer
b
C
d
d
d
C
a
C
d
d
d
d (1) the Yellow River Basin: Yuean, Luoyang; Yangtze River Basin: Yangzhou, Yizhou; Southeast coast: Guangzhou, Quanzhou 2) Bank, money order< (3) set up the municipal shipping department and formulate the municipal shipping rules 4) With the emergence of the counter shop and feiqian, foreign trade is developed< In Shang Dynasty, commerce was controlled by the government. During the spring and Autumn period and the Warring States period, the government's control of Commerce was broken, and many commodity markets and big businessmen appeared. The commercial development in Qin and Han Dynasties was difficult. In Sui and Tang Dynasties, commerce flourished, and there were many famous commercial cities. With the development of rural markets, there were cupboards and flying money
the commercial economy of the Song Dynasty was unprecedentedly prosperous, and jiaozi, the earliest paper currency in the world, appeared. In the Ming and Qing Dynasties, there was still a prosperous scene, a large number of agricultural and sideline procts became commercial
procts, and "commercial Gang" appeared
I Multiple choice question
lesson 4 ancient economic policy
1 question number
2
3
4
5
6
7
8
9
10
1L
12
13
14
15
1 answer
b
C
b
b
d
d
a
b
C
d 2、 Non choice questions
16. In the Warring States period, this thought played an important role in the development of feudal economy and laid an economic foundation for the establishment of feudal system 2) In the Qing Dynasty, it was still the thought of emphasizing agriculture and restraining commerce. Influence: this thought plays a certain role in the development of agriculture, but it seriously hinders the development of the germination of capitalism, causes the whole social economy to lag day by day, and leads to China's backward economic status
17. (1) the root cause is the development of proctive forces in the spring and Autumn period and the Warring States period, that is, the promotion of cattle farming with iron plow. The main way is the reform movement in various countries
(2) problems: land annexation; Law: Land tends to be privatized
I Multiple choice
unit 2: formation and development of capitalist world market
lesson 5: opening up a new route
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1 answer
a
C
d
B
d
b
a
d (1) from the 13th century to the 15th century, because Ottoman Turkey controlled the eastern Mediterranean sea route, the silk road was interrupted, and the communication between the East and the West was stopped, Europeans were full of magical and illusory subjective imagination about the East 2) The opening of new air routes; From then on, human beings began to develop in a decentralized and isolated way, and then they began to move towards the whole world 3) Material three reflects that the motive of material two's historical activities is to look for gold and other valuables
17. (1) with the development of commodity economy and the emergence of capitalism in Western Europe, people are increasingly eager for gold and silver The spread of Marco Polo's
biography enticed people to "seek gold" in the East; The traditional eastbound road was controlled by the Ottoman Empire; The rulers of Portugal and Spain actively supported overseas exploration activities; The church encouraged the spread of Catholicism 2) Seizing the colony
I Multiple choice questions
Lesson 6 colonial expansion and world market expansion
question number
L
2
3
4
5
6
7
8
9
10
ll
12
13
14
15
answers
d
d
C
b
a
C
C
d
d
C
C (1) occupation of land, plunder of wealth, genocide and trafficking in slaves. The direct cause: e to the genocide of the Native Americans, there was a shortage of labor in the United States, while the mining and planting instries in the American colonies needed a lot of labor 2) Slave trade is an important means of capital primitive accumulation,
promoted the development of European capitalism; The impact on Africa: the number of strong African labor force is significantly reced, the homes of black people are destroyed, the social economy is backward, and people are trapped in poverty and backwardness 3) The process of primitive accumulation of capitalism is a bloody process of plunder, and every step of the development of capitalism is the same. Cool colonial plunder is inseparable
from 17.17 to 18 century, the colonial expansion of Holland, France, Britain and other countries provided the original accumulation of capital for the development of capitalism in Western Europe, and promoted the development of capitalism in Western Europe; It has caused great destruction and disaster to the areas and people who were invaded by colonial forces; The capitalist world market will be further expanded
I Multiple choice questions
Lesson 7 the first instrial revolution
question number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
answers
d
C
d
C
a
B
d
C
d
C
d
b 2、 Non multiple choice questions
16. (1) the core content is machine proction instead of manual labor, factory instead of manual workshop (workshop); The change of social relations is to change all social differences into the opposition between workers and capitalists, that is, the society is divided into two opposing classes 2) "Civilization" refers to capitalism; The reason is "cheap procts"; The core is the advanced capitalist mode of proction 3) Positive significance: it has objectively impacted the backward social and economic system, spread the advanced
thought and mode of proction, so as to promote the backward countries and regions towards modernization
17. Point of view: from the perspective of historical development, the opening of the new air route accelerated the social differentiation, accelerated the decline of the feudal system in Western Europe, promoted the development of capitalism, and promoted the formation of the world market. Evaluation: the author's view is correct. The opening of the new air route enabled the western colonists to start large-scale colonial activities, accelerated the decline of the feudal system in Western Europe, and promoted the development of capitalism. At the same time, the relative isolation between continents has been broken, and the world has increasingly become an interactive and closely linked whole
I Multiple choice questions
Lesson 8 the second instrial revolution
1
2
3
4
5
6
7
8
9
10
1L
12
13
14
15 |
} answers
d
d
a
C
a
d
C
d
b
d
C
d 2、 (1) when Columbus sailed to America, he linked Eurasia and America together for the first time, and made great contributions to the exchanges among different regions and nationalities; The western colonists began to invade America and carried out cruel colonial rule and plunder for a long time 2) The first instrial revolution included cotton spinning instry, machine manufacturing instry, transportation instry, etc; The second instrial revolution included electric power instry, automobile instry and chemical instry (3) first, science and technology are closely integrated; Second, to develop heavy instry; Third, it occurs almost simultaneously in several advanced
capitalist countries. Enlightenment: Science and technology is the first proctive force, the progress of science and technology drives the development of proctive forces, and the development of proctive forces promotes the progress of history 4) Process: after the opening of the new air route, the colonial expansion of the Western powers ended the isolation of all parts of the world, strengthened the communication system of all parts of the world, and opened the curtain of forming the world market. The first instrial revolution further enhanced the strength of Western powers, accelerated the pace of colonial expansion of Western powers, and basically formed the world market. After the second instrial revolution, Western powers set off a frenzy to carve up the world, and the world market was finally formed< br /> 17．(1)
question number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
} answers
C
C
d
d
C
d
C
a
d
b
b
b
b (1) the above materials reflect the proction mode of small-scale peasant economy in ancient China. This mode of proction first appeared in the spring and Autumn period. The progress of proction tools and farming technology is the reason for its emergence 2) The characteristics of this mode of proction are men's farming and women's weaving, and self-sufficiency 3) Self employed farmers are the main undertakers of taxes and corvee of the state, and the burden is heavy; Farmers' proction scale is small, the means of proction is limited, it is difficult to expand reproction, and the ability to resist natural and man-made disasters is poor. The small-scale peasant economy is very fragile, and the self-employed peasants often go bankrupt because of floods and droughts or the rapid levy of taxes
17. The original agriculture was just sowing and harvesting at first, and then slash and burn cultivation was adopted. With the emergence of proction tools such as Song Dynasty, seven or eight thousand years ago, China's agriculture entered the era of "ploughing" or "stone hoeing"; During the Shang and Zhou dynasties, there were a small number of bronze tools and farming tools, and they mastered the techniques of irrigation and drainage, fertilization, weeding and pest control; During the spring and Autumn period and the Warring States period, the use and popularization of iron and cattle farming, and the development of fertilization and irrigation technology marked the formation of iron plough cattle farming, a traditional farming method in ancient China
basic characteristics: independent development, self-contained system; intensive and meticulous farming; provide for oneself. Family is the basic unit of proction and life; Farmers have less means of proction and intensive farming; The combination of agriculture and cottage instry is a self-sufficient natural economy
I Multiple choice questions
lesson 2 progress of ancient handicraft instry
question number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1 answer
C
b
b
d
a
b
C
d
b
a
b
d
b 2、 Non multiple choice questions
16. (1) state owned handicraft instry, household handicraft instry and private handicraft instry 2) The government operates directly and carries out centralized large-scale workshop proction 3) Self sufficiency 4) The seeds of capitalism appeared
17. Development characteristics: ① the state-owned handicraft instry is developed. For example, metallurgical instry is leading the world; ② Folk handicraft instry is hard to operate. For example: Huang Daopo's contribution to
cotton textile instry; ③ It is famous all over the world. Examples: "silk country", "Silk Road" and "porcelain country"< The development of ancient commerce Multiple choice
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
"answer
b
C
d
d
d
C
a
C
d
d
d
d (1) the Yellow River Basin: Yuean, Luoyang; Yangtze River Basin: Yangzhou, Yizhou; Southeast coast: Guangzhou, Quanzhou 2) Bank, money order< (3) set up the municipal shipping department and formulate the municipal shipping rules 4) With the emergence of the counter shop and feiqian, foreign trade is developed< In Shang Dynasty, commerce was controlled by the government. During the spring and Autumn period and the Warring States period, the government's control of Commerce was broken, and many commodity markets and big businessmen appeared. The commercial development in Qin and Han Dynasties was difficult. In Sui and Tang Dynasties, commerce flourished, and there were many famous commercial cities. With the development of rural markets, there were cupboards and flying money
the commercial economy of the Song Dynasty was unprecedentedly prosperous, and jiaozi, the earliest paper currency in the world, appeared. In the Ming and Qing Dynasties, there was still a prosperous scene, a large number of agricultural and sideline procts became commercial
procts, and "commercial Gang" appeared
I Multiple choice question
lesson 4 ancient economic policy
1 question number
2
3
4
5
6
7
8
9
10
1L
12
13
14
15
1 answer
b
C
b
b
d
d
a
b
C
d 2、 Non choice questions
16. In the Warring States period, this thought played an important role in the development of feudal economy and laid an economic foundation for the establishment of feudal system 2) In the Qing Dynasty, it was still the thought of emphasizing agriculture and restraining commerce. Influence: this thought plays a certain role in the development of agriculture, but it seriously hinders the development of the germination of capitalism, causes the whole social economy to lag day by day, and leads to China's backward economic status
17. (1) the root cause is the development of proctive forces in the spring and Autumn period and the Warring States period, that is, the promotion of cattle farming with iron plow. The main way is the reform movement in various countries
(2) problems: land annexation; Law: Land tends to be privatized
I Multiple choice
unit 2: formation and development of capitalist world market
lesson 5: opening up a new route
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1 answer
a
C
d
B
d
b
a
d (1) from the 13th century to the 15th century, because Ottoman Turkey controlled the eastern Mediterranean sea route, the silk road was interrupted, and the communication between the East and the West was stopped, Europeans were full of magical and illusory subjective imagination about the East 2) The opening of new air routes; From then on, human beings began to develop in a decentralized and isolated way, and then they began to move towards the whole world 3) Material three reflects that the motive of material two's historical activities is to look for gold and other valuables
17. (1) with the development of commodity economy and the emergence of capitalism in Western Europe, people are increasingly eager for gold and silver The spread of Marco Polo's
biography enticed people to "seek gold" in the East; The traditional eastbound road was controlled by the Ottoman Empire; The rulers of Portugal and Spain actively supported overseas exploration activities; The church encouraged the spread of Catholicism 2) Seizing the colony
I Multiple choice questions
Lesson 6 colonial expansion and world market expansion
question number
L
2
3
4
5
6
7
8
9
10
ll
12
13
14
15
answers
d
d
C
b
a
C
C
d
d
C
C (1) occupation of land, plunder of wealth, genocide and trafficking in slaves. The direct cause: e to the genocide of the Native Americans, there was a shortage of labor in the United States, while the mining and planting instries in the American colonies needed a lot of labor 2) Slave trade is an important means of capital primitive accumulation,
promoted the development of European capitalism; The impact on Africa: the number of strong African labor force is significantly reced, the homes of black people are destroyed, the social economy is backward, and people are trapped in poverty and backwardness 3) The process of primitive accumulation of capitalism is a bloody process of plunder, and every step of the development of capitalism is the same. Cool colonial plunder is inseparable
from 17.17 to 18 century, the colonial expansion of Holland, France, Britain and other countries provided the original accumulation of capital for the development of capitalism in Western Europe, and promoted the development of capitalism in Western Europe; It has caused great destruction and disaster to the areas and people who were invaded by colonial forces; The capitalist world market will be further expanded
I Multiple choice questions
Lesson 7 the first instrial revolution
question number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
answers
d
C
d
C
a
B
d
C
d
C
d
b 2、 Non multiple choice questions
16. (1) the core content is machine proction instead of manual labor, factory instead of manual workshop (workshop); The change of social relations is to change all social differences into the opposition between workers and capitalists, that is, the society is divided into two opposing classes 2) "Civilization" refers to capitalism; The reason is "cheap procts"; The core is the advanced capitalist mode of proction 3) Positive significance: it has objectively impacted the backward social and economic system, spread the advanced
thought and mode of proction, so as to promote the backward countries and regions towards modernization
17. Point of view: from the perspective of historical development, the opening of the new air route accelerated the social differentiation, accelerated the decline of the feudal system in Western Europe, promoted the development of capitalism, and promoted the formation of the world market. Evaluation: the author's view is correct. The opening of the new air route enabled the western colonists to start large-scale colonial activities, accelerated the decline of the feudal system in Western Europe, and promoted the development of capitalism. At the same time, the relative isolation between continents has been broken, and the world has increasingly become an interactive and closely linked whole
I Multiple choice questions
Lesson 8 the second instrial revolution
1
2
3
4
5
6
7
8
9
10
1L
12
13
14
15 |
} answers
d
d
a
C
a
d
C
d
b
d
C
d 2、 (1) when Columbus sailed to America, he linked Eurasia and America together for the first time, and made great contributions to the exchanges among different regions and nationalities; The western colonists began to invade America and carried out cruel colonial rule and plunder for a long time 2) The first instrial revolution included cotton spinning instry, machine manufacturing instry, transportation instry, etc; The second instrial revolution included electric power instry, automobile instry and chemical instry (3) first, science and technology are closely integrated; Second, to develop heavy instry; Third, it occurs almost simultaneously in several advanced
capitalist countries. Enlightenment: Science and technology is the first proctive force, the progress of science and technology drives the development of proctive forces, and the development of proctive forces promotes the progress of history 4) Process: after the opening of the new air route, the colonial expansion of the Western powers ended the isolation of all parts of the world, strengthened the communication system of all parts of the world, and opened the curtain of forming the world market. The first instrial revolution further enhanced the strength of Western powers, accelerated the pace of colonial expansion of Western powers, and basically formed the world market. After the second instrial revolution, Western powers set off a frenzy to carve up the world, and the world market was finally formed< br /> 17．(1)
2. HTC is going to close down, not focusing on customer experience is doomed to be the end
3. Crusher is a very magical existence, it can break a mineral into two parts of mineral powder, one part of mineral can burn a metal ingot, so it is a double mineral generator. Of course, you can also put the broken mineral powder into the ore washing plant or thermal centrifuge, which will proce by-procts, such as a handful of metal powder, nine can synthesize a standard metal powder
4. It's porcelain white material. If the material has not been dried, if the dryer works normally, if the natural color of the material is stable, if there are problems with PC + ABS material, please contact me
5. What crusher
for roller crusher, we are equipped with cycloid pin wheel recer
other crushers are driven by belt pulley
for roller crusher, we are equipped with cycloid pin wheel recer
other crushers are driven by belt pulley
6. Are you sure the essence of the powder is the mineral? The raw ore is not a well burnt mineral tool and it seems that it can't be used
7. Raymond mill, strictly speaking, does not belong to pulverizer, it belongs to pulverizer. The particle size of the crusher is large (such as stone, limestone, granite, etc.), and the particle size of the crusher is also relatively large (such as stone, sand). The feeding particle size of the mill is small, and the discharging particle size is also small. So Raymond Mill belongs to the mill.
8. Check the safety valve and oil seal
9. With the rapid development of digital imaging technology, the shooting performance of digital camera is becoming increasingly powerful. When consumers choose digital cameras, they pay most attention to the pixels of digital cameras, and the mainstream card DC with 12 million pixels or even 14 million pixels has emerged in the consumer machine DC market. When you are close to nature and enjoy the flowers from a distance, the most commonly used function is the macro function of the digital camera. Although the micro function of mining machinery is not very important, it is a very practical function. If the micro function of your digital camera does not perform well, many details in the nature may not be captured, It's hard to avoid leaving regrets in the process of shooting
macro photographing
in this shopping guide, I carefully selected Canon ixus130 is, Sony TX5, Nikon S8000, Samsung pl150 and Fuji f85exr, which are super micro digital cameras, Gravel machine quotation, hope to provide reference for you in the purchase process<
macro shooting card DC recommendation 1: Canon ixus130 is (information and pictures Forum)
reference quotation: 1880 yuan
macro: 3cm
Canon IXUS 130 is the upgraded model of IXUS 120 is, which improves the imaging capacity to 14 million pixels, is equipped with 4x optical zoom with 28mm wide-angle lens, and can shoot 720p high-definition video, It is equipped with highly praised digital 4 image processor and intelligent auto function. As far as the upgrade range is concerned, the upgrade range of Canon IXUS 130 is small, but it reces the body thickness to a thinner 17.8 mm, surpassing the IXUS 100 is and becomes the thinnest card camera of Canon at present. With the ultra micro range capability of the closest shooting distance of 3cm, it becomes the first recommended model today
IXUS 130 also adds new shooting modes such as "fish eye effect", "micro landscape effect", "automatic shutter" and "low light", which makes it more playable and practical. It also replaced the screen material with a 2.7-inch, 230000 pixel purecolor 2nd generation LCD screen for better picture quality. Because of its small size and light weight, the ultra-thin card machine has always been favored by fashionable women who like to carry digital cameras with them. The 17.8mm body of Canon IXUS 130 is undoubtedly the most worthy ultra-thin card camera for MM this year<
click on the picture to see the details of Canon ixus130 is
Canon ixus130 is has replaced ixus100 is to become the thinnest camera of canon. Although it adopts 28mm wide-angle 4x light variable lens, the body thickness of Canon ixus130 is only 17.8mm, which is 0.2mm thinner than ixus100 is, and the body size is 92.2mm × fifty-six point one × It's 17.8mm, weighs only 114g, and has excellent portability. The exterior of Canon IXUS 130 is very similar to that of ixus120 is. The fuselage is made of stainless steel. The surface of the fuselage is treated with three layers of coating and Matt treatment. The texture is very delicate and the gloss is excellent. The whole machine is exquisite. The fuselage design is very simple<
click on the picture to view the details of Canon ixus130 is
in terms of screen, Canon ixus130 is adopts 2.7-inch 230000 pixel purecolor 2nd generation LCD screen, sand making machine equipment, full and bright picture quality, high contrast and strong anti reflective ability<
click on the picture to view the details of Canon ixus130 is
Canon ixus130 is adopts DIGIC 4 image processor with stronger data processing ability and faster operation speed. The fuselage is equipped with HDMI output interface, which is connected to HDTV through HDMI interface, so that you can watch HD short films and images on the large screen. Canon IXUS 130 has upgraded the "smart Auto" mode. On the basis of the original 18 kinds of scene detection, it has added four new detection in character motion scenes, automatic detection of up to 22 detail scenes and color icon display of 22 scene types, so as to cope with a variety of shooting environments calmly. Support SD / SDHC memory card expansion capacity. Canon IXUS 130 has added new shooting modes such as "fish eye effect", "miniature landscape effect", "automatic shutter" and "low light"<
click on the picture to view the details of Canon ixus130 is
enjoy the sample of Canon ixus130 is:
aperture: f2.8 shutter: 1 / 158 sec ISO: 80
advantages and disadvantages of Canon ixus130 summarize the advantages and disadvantages
1. The screen is in good condition in the sun
2. "Smart flash exposure" technology has good effect
3. A variety of novel shooting modes are available
4 720P HD video shooting
5. Reasonable price
1. There is a problem in the manufacturing process of battery bin cover
2. There is no auto focusing function ring video shooting
3. The noise rection effect of ISO 800 is not good
editorial point of view: compared with the predecessor IXUS 120 is, the biggest highlight of Canon IXUS 130 is thinner fuselage, lighter weight and better portability of lead-zinc ore dressing equipment, The micro distance ability reaches 3cm. It also adds some new shooting functions such as "fish eye effect" and "micro landscape effect", which can take interesting and creative photos. The basic performance of Canon IXUS 130 is similar to that of IXUS 120 is. Although it adopts 14 million high pixels, the imaging quality of Canon IXUS 130 can be guaranteed by virtue of Canon's excellent imaging quality and solid foundation<
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macro photographing
in this shopping guide, I carefully selected Canon ixus130 is, Sony TX5, Nikon S8000, Samsung pl150 and Fuji f85exr, which are super micro digital cameras, Gravel machine quotation, hope to provide reference for you in the purchase process<
macro shooting card DC recommendation 1: Canon ixus130 is (information and pictures Forum)
reference quotation: 1880 yuan
macro: 3cm
Canon IXUS 130 is the upgraded model of IXUS 120 is, which improves the imaging capacity to 14 million pixels, is equipped with 4x optical zoom with 28mm wide-angle lens, and can shoot 720p high-definition video, It is equipped with highly praised digital 4 image processor and intelligent auto function. As far as the upgrade range is concerned, the upgrade range of Canon IXUS 130 is small, but it reces the body thickness to a thinner 17.8 mm, surpassing the IXUS 100 is and becomes the thinnest card camera of Canon at present. With the ultra micro range capability of the closest shooting distance of 3cm, it becomes the first recommended model today
IXUS 130 also adds new shooting modes such as "fish eye effect", "micro landscape effect", "automatic shutter" and "low light", which makes it more playable and practical. It also replaced the screen material with a 2.7-inch, 230000 pixel purecolor 2nd generation LCD screen for better picture quality. Because of its small size and light weight, the ultra-thin card machine has always been favored by fashionable women who like to carry digital cameras with them. The 17.8mm body of Canon IXUS 130 is undoubtedly the most worthy ultra-thin card camera for MM this year<
click on the picture to see the details of Canon ixus130 is
Canon ixus130 is has replaced ixus100 is to become the thinnest camera of canon. Although it adopts 28mm wide-angle 4x light variable lens, the body thickness of Canon ixus130 is only 17.8mm, which is 0.2mm thinner than ixus100 is, and the body size is 92.2mm × fifty-six point one × It's 17.8mm, weighs only 114g, and has excellent portability. The exterior of Canon IXUS 130 is very similar to that of ixus120 is. The fuselage is made of stainless steel. The surface of the fuselage is treated with three layers of coating and Matt treatment. The texture is very delicate and the gloss is excellent. The whole machine is exquisite. The fuselage design is very simple<
click on the picture to view the details of Canon ixus130 is
in terms of screen, Canon ixus130 is adopts 2.7-inch 230000 pixel purecolor 2nd generation LCD screen, sand making machine equipment, full and bright picture quality, high contrast and strong anti reflective ability<
click on the picture to view the details of Canon ixus130 is
Canon ixus130 is adopts DIGIC 4 image processor with stronger data processing ability and faster operation speed. The fuselage is equipped with HDMI output interface, which is connected to HDTV through HDMI interface, so that you can watch HD short films and images on the large screen. Canon IXUS 130 has upgraded the "smart Auto" mode. On the basis of the original 18 kinds of scene detection, it has added four new detection in character motion scenes, automatic detection of up to 22 detail scenes and color icon display of 22 scene types, so as to cope with a variety of shooting environments calmly. Support SD / SDHC memory card expansion capacity. Canon IXUS 130 has added new shooting modes such as "fish eye effect", "miniature landscape effect", "automatic shutter" and "low light"<
click on the picture to view the details of Canon ixus130 is
enjoy the sample of Canon ixus130 is:
aperture: f2.8 shutter: 1 / 158 sec ISO: 80
advantages and disadvantages of Canon ixus130 summarize the advantages and disadvantages
1. The screen is in good condition in the sun
2. "Smart flash exposure" technology has good effect
3. A variety of novel shooting modes are available
4 720P HD video shooting
5. Reasonable price
1. There is a problem in the manufacturing process of battery bin cover
2. There is no auto focusing function ring video shooting
3. The noise rection effect of ISO 800 is not good
editorial point of view: compared with the predecessor IXUS 120 is, the biggest highlight of Canon IXUS 130 is thinner fuselage, lighter weight and better portability of lead-zinc ore dressing equipment, The micro distance ability reaches 3cm. It also adds some new shooting functions such as "fish eye effect" and "micro landscape effect", which can take interesting and creative photos. The basic performance of Canon IXUS 130 is similar to that of IXUS 120 is. Although it adopts 14 million high pixels, the imaging quality of Canon IXUS 130 can be guaranteed by virtue of Canon's excellent imaging quality and solid foundation<
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10. Iron ore beneficiation technology and process
China's iron ore is rich in lean ore (accounting for 97.5% of the total reserves) and comprehensive ore with other components (accounting for 1 / 3 of the total reserves), so most of the iron ore needs to be beneficiated before smelting.
in 1996, 214.97 million tons of iron ore were selected, accounting for 85.2% of 252.28 million tons of iron ore in China, Among them, the key concentrators process 109.61 million tons of raw ore and proce 41.58 million tons of iron concentrate powder, accounting for 48.4% of China's iron concentrate powder proction.
(1) ore crushing
China's concentrators generally use three-stage crushing process of coarse crushing, medium crushing and fine crushing to crush iron ore. generally, 1.2m or 1.5m rotary crusher is used for coarse crushing, and 2.1m or 2.2m standard cone crusher is used for medium crushing, 2.1m or 2.2m short head cone crusher is used for fine crushing. The coarse broken ore is not more than 1m in size, and then it is divided into medium and fine crushing. The final proct with ore particle size less than 12mm is sent to grinding tank, In recent years, some concentrators have changed from two-stage grinding to three-stage grinding e to the new process of fine screening and regrinding. Generally, the grinding equipment used is relatively small, and the maximum ball mill is 3.6m × 6m, maximum rod mill 3.2m × 4.5m, maximum autogenous mill 5.5m × 1.8m, gravel mill 2.7m × 3.6m.
spiral classifier is basically used for classification after grinding. In order to improve efficiency, hydrocyclone is used to replace secondary spiral classifier in some concentrators.
(3) separation technology
1. Magnetite beneficiation
e to strong magnetism and good grinding and separation, domestic magnetic concentrators all adopt stage grinding and multi-stage grinding processes, The former (one-stage grinding) is used for coarse-grained magnetite and the latter (two-stage or three-stage grinding) is used for fine-grained and fine-grained magnetite. A series of permanent magnetic separators developed by our country have realized permanent magnetization. Since 1970s, the concentrate grade has been increased from 62% to 66% e to the new technology of fine screening and regrinding popularized in national magnetite concentrators, The requirement of 65% concentrate grade proposed by Ministry of metallurgical instry has been realized.
2. Weak magnetic iron ore beneficiation is mainly used to separate hematite, limonite, Specularite, siderite, pseudo hematite or mixed ore, which is called "red ore". This kind of ore has low grade, fine disseminated particle size, complex mineral composition and difficult separation The research on technological process, equipment and new kinds of reagents such as wet high intensity magnetic separation, weak magnetic flotation and gravity separation has been continuously improved, which has resulted in the continuous improvement of concentrate grade and metal recovery.
3. Beneficiation of polymetallic syngenetic ore
this kind of ore has complex composition and diverse types, so the methods, equipment and processes used are also different, such as reverse flotation multi gradient magnetic separation In order to improve the recovery rate of iron and comprehensively recover rare earth oxides, there are different technological processes, such as flocculation flotation, low intensity magnetic reverse flotation high intensity magnetic separation, low intensity magnetic positive flotation and roasting magnetic separation. Panhua Iron Mine obtains about 53% TFE ferrovanadium concentrate by magnetic separation, and the tailings after magnetic separation obtain titanium concentrate and sulfur cobalt concentrate by low intensity magnetic sweeping high intensity magnetic separation gravity separation flotation dry electric separation, Recovery of titanium and cobalt. Iron, copper, cobalt, sulfur and other elements are comprehensively recovered from Daye iron ore by weak magnetic high magnetic and flotation
China's iron ore is rich in lean ore (accounting for 97.5% of the total reserves) and comprehensive ore with other components (accounting for 1 / 3 of the total reserves), so most of the iron ore needs to be beneficiated before smelting.
in 1996, 214.97 million tons of iron ore were selected, accounting for 85.2% of 252.28 million tons of iron ore in China, Among them, the key concentrators process 109.61 million tons of raw ore and proce 41.58 million tons of iron concentrate powder, accounting for 48.4% of China's iron concentrate powder proction.
(1) ore crushing
China's concentrators generally use three-stage crushing process of coarse crushing, medium crushing and fine crushing to crush iron ore. generally, 1.2m or 1.5m rotary crusher is used for coarse crushing, and 2.1m or 2.2m standard cone crusher is used for medium crushing, 2.1m or 2.2m short head cone crusher is used for fine crushing. The coarse broken ore is not more than 1m in size, and then it is divided into medium and fine crushing. The final proct with ore particle size less than 12mm is sent to grinding tank, In recent years, some concentrators have changed from two-stage grinding to three-stage grinding e to the new process of fine screening and regrinding. Generally, the grinding equipment used is relatively small, and the maximum ball mill is 3.6m × 6m, maximum rod mill 3.2m × 4.5m, maximum autogenous mill 5.5m × 1.8m, gravel mill 2.7m × 3.6m.
spiral classifier is basically used for classification after grinding. In order to improve efficiency, hydrocyclone is used to replace secondary spiral classifier in some concentrators.
(3) separation technology
1. Magnetite beneficiation
e to strong magnetism and good grinding and separation, domestic magnetic concentrators all adopt stage grinding and multi-stage grinding processes, The former (one-stage grinding) is used for coarse-grained magnetite and the latter (two-stage or three-stage grinding) is used for fine-grained and fine-grained magnetite. A series of permanent magnetic separators developed by our country have realized permanent magnetization. Since 1970s, the concentrate grade has been increased from 62% to 66% e to the new technology of fine screening and regrinding popularized in national magnetite concentrators, The requirement of 65% concentrate grade proposed by Ministry of metallurgical instry has been realized.
2. Weak magnetic iron ore beneficiation is mainly used to separate hematite, limonite, Specularite, siderite, pseudo hematite or mixed ore, which is called "red ore". This kind of ore has low grade, fine disseminated particle size, complex mineral composition and difficult separation The research on technological process, equipment and new kinds of reagents such as wet high intensity magnetic separation, weak magnetic flotation and gravity separation has been continuously improved, which has resulted in the continuous improvement of concentrate grade and metal recovery.
3. Beneficiation of polymetallic syngenetic ore
this kind of ore has complex composition and diverse types, so the methods, equipment and processes used are also different, such as reverse flotation multi gradient magnetic separation In order to improve the recovery rate of iron and comprehensively recover rare earth oxides, there are different technological processes, such as flocculation flotation, low intensity magnetic reverse flotation high intensity magnetic separation, low intensity magnetic positive flotation and roasting magnetic separation. Panhua Iron Mine obtains about 53% TFE ferrovanadium concentrate by magnetic separation, and the tailings after magnetic separation obtain titanium concentrate and sulfur cobalt concentrate by low intensity magnetic sweeping high intensity magnetic separation gravity separation flotation dry electric separation, Recovery of titanium and cobalt. Iron, copper, cobalt, sulfur and other elements are comprehensively recovered from Daye iron ore by weak magnetic high magnetic and flotation
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