Performance comparison of Amazon cloud server

1. Of course, it's beyond the normal temperature environment of people's life. It's easy to have headache / fatigue / fatigue for a long time

2. As far as I know, across the country, there are more manufacturers in Henan, and they are doing it earlier. The technology of this thing has been very mature for a long time. Basically, buy a reliable one with good after-sales service. It's also made in the south. The price is relatively expensive. I bought it from Henan. It's five or six years old, and the quality is OK. The middle water pipe has been cracked once, and I haven't encountered any other problems. I've been to their factory before, and the boss is quite honest. He called me some time ago to say that they have expanded their marketing team and changed their name to Henan Tongcheng Electronic Technology Co., Ltd.

3. High frequency heater, also known as high-frequency machine, high-frequency inction heating equipment, high-frequency inction heating device, high-frequency heating power supply, high-frequency power supply, high-frequency electric furnace. High frequency welding machine, high-frequency inction heating machine, high-frequency inction heater (welder), in addition to medium frequency inction heating equipment, ultra-high frequency inction heating equipment, etc. It has a wide range of applications, such as metal heat treatment, brazing and smelting
working principle of high frequency heating machine. Thus, a strong magnetic beam with instantaneous change of polarity is generated in the coil. When a heated object such as metal is placed in the coil, the magnetic beam will penetrate the whole heated object, and a large eddy current will be generated in the opposite direction of the heating current inside the heated object. Because there is resistance in the heated object, it will proce a lot of Joule heat, which makes the temperature of the object rise rapidly. Achieve the purpose of heating all metal materials
physical basis of inction heating: put the metal conctor in the coil with alternating current. According to the principle of electromagnetic inction, under the action of alternating magnetic field, the inced current (eddy current) with opposite direction, equal size and same frequency will be generated in the conctor, The method of heating the conctor by using the inced current generated in the conctor is called inction heating of high frequency heater
physical phenomenon of inction heating:
1. Skin effect: also known as skin effect or surface effect. When DC current passes through a conctor, the current density of points on the conctor section is uniform. When the AC current passes through the conctor, the current density on the surface of the conctor is larger, and the current inside the conctor is smaller. When the high frequency furnace current passes through the conctor, the current density difference on the cross section of the conctor increases more, and the current mainly concentrates on the surface of the conctor. This phenomenon is called skin effect< 2. Proximity phenomenon:
two adjacent conctors, such as the effective heating wires of two bus bars or high-frequency furnace inctors and the parts heated by high-frequency inction, under the condition of alternating current passing through, the current on the conctor will redistribute e to the interaction of current magnetic field, which is called proximity effect. The same direction current is mainly concentrated on the outside of two adjacent conctors, and the reverse current is mainly concentrated on the inside of two adjacent conctors. The closer the two conctors are, the more obvious the effect is.

5.

High frequency inction heating model xy-15kw-a-body xy-15kw-b-body xy-15kw-a-body xy-25kw-b-body high frequency inction input voltage single phase 220v50-60hz single phase 220v50-60hz three phase 220v50-60hz three phase 220v50-60hz output oscillation power 15KVA 15KVA 25KVA 25KVA temporary load rate 80% 30 ℃ 80% 30 ℃ 80% 30 ℃ 80% 30 ℃ external dimension 1000x750x1750mm weight 230kg 230kg 250kg wire side connection length 5m

6. This is a problem of political economy, which is explained from the perspective of proctivity: in primitive society, proctivity was low, but private ownership had already emerged. But a person can not have all things, so the way of barter first appeared. However, this has its limitations (as for the specific uncertainty, it may be because there is no way of mortgage to exchange today's goods for tomorrow's goods). Then the ancient currency based on shells appeared. This is the measure of material value This kind of exchange is naturally more convenient than barter exchange, so the general equivalent is independent as a special transaction. And "making money" is completely separated from proction, but can get the general equivalent way. There may be some benefits. This way of making money by recing manual labor is graally accepted by more people, so businessmen become an independent proction group. Until business became more and more complicated, it became an independent science. Until. The society graally divided into four groups, and the circulation of money had begun to take shape. That's it. Who knows when you asked. If you want to say that proction is easy, if you want to say that formation, you can study it slowly....,..

7.

Tianfang market (Guangzhou) data Technology Co., Ltd. is another limited liability company incorporated on August 4, 2017. Its registered address is located at one of the first floor, 78 Yan Road, Tianhe District, Guangzhou (office only)

the unified social credit code / registration number of Tianfang market (Guangzhou) data Technology Co., Ltd. is 91440101ma59rcrb60, and the enterprise legal person is Zhou Shihong

The business scope of Tianfang market (Guangzhou) data Technology Co., Ltd. is: artificial intelligence innovation and entrepreneurship service platform; Internet security services; Internet data service; Digital cultural and creative content application services; Blockchain technology related software and services; Internet of things application services; Engaging in investment activities with its own funds; Corporate image planning; Packaging services; Graphic design and proction; Project planning and public relations services; Advertising (non radio, television, newspaper publishing units); Labor service (excluding labor dispatch); business management; Market investigation (excluding foreign investigation); Marketing planning; Advertising design, agency; Big data service; Artificial intelligence public data platform; Information system integration service; Artificial intelligence instry application system integration service; Data processing and storage support services; Basic software development of artificial intelligence; Digital content proction services (excluding publishing and distribution services); General application system of artificial intelligence; Network technology service; Artificial intelligence public service platform technology consulting service; Artificial intelligence basic resources and technology platform; Software development; Digital cultural creative software development; Network and information security software development; Software development of artificial intelligence theory and algorithm; Artificial intelligence application software development; Software outsourcing services; Research and development of intelligent robot; Intelligent control system integration; Satellite technology integrated application system integration; Internet of things technology services; Information system operation and maintenance services; Information technology consulting service; Technology, information, facilities construction and operation services related to agricultural proction and operation; Data processing services; Computer system services; Proction, sales, processing, transportation, storage and other related services of agricultural procts; Agricultural proction trusteeship service; Fresh fruit wholesale; Fresh meat wholesale; Grain sales; Wholesale of aquatic procts; Weighing apparatus sales; Sales of agricultural and sideline procts; Bean and potato sales; Wholesale of edible agricultural procts; Internet of things equipment sales; Sales of terminal metering equipment; Network equipment sales; Consignment service; Sales agent; Retail of edible agricultural procts; Internet sales (except for the sale of goods requiring permission); Internet equipment sales; Retail of aquatic procts; Wholesale of fresh eggs; Fresh fruit retail; Retail of fresh vegetables; Fresh meat retail; Retail of fresh eggs; Take out delivery service; estate management; Counters and stalls for rent; Commercial complex management services; Road freight transport (network freight transport); Internet information service; The first kind of value-added telecommunication service; The second kind of value-added telecommunication services; Basic telecommunication services; Food business (sales of prepackaged food); Food business; Food business (selling bulk food); Computer information system security procts sales; Food Internet sales (sales of prepackaged food); Snacks and miscellaneous food; Food Internet sales

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