Mining machinery in wet season and dry season

1.

Dry season is also called dry season. It refers to the period when the surface water in the basin is exhausted and mainly depends on the groundwater supply. The ration of dry season in a year varies with the physical geography and meteorological conditions of the basin

wet season refers to the period when the river water is mainly supplied by rainfall or snowmelt. Generally in rainy season or spring when the temperature continues to rise, the river is rich in water. Both are mainly affected by season and rainfall

The time and month of the dry season of the

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are not fixed, but determined by the physical geography and meteorological conditions of the basin. The dry season mainly occurs in the dry season. The starting and ending time and ration depend on the supply of the river

the dry season in China generally starts from autumn and continues to the next spring, which is shorter in the South and longer in the north. Dry season refers to the period when the surface water in the basin is exhausted and mainly depends on groundwater supply. When the proportion of monthly average runoff to annual runoff is less than 5%, it belongs to dry season

2. Judging from the climate of the river basin, it is mainly supplied by rainwater. The period with more precipitation is the wet season, and the period with less precipitation is the dry season; The period of high temperature is wet season, and the period of low temperature is dry season.

3. Fengshui C and nursing 7 are mainly adjusted according to different seasons.

4. In most areas of the country, there are wet periods from May to September, dry periods from December to February, and other normal periods. There are differences between the north and the south. There are also spring flood and ice flood of the Yellow River in Glacier areas

5. three hundred and twenty-one

6. The simplest way is to look up the data and see the climate type of your place. Another way is to record the water level in a year and compare the monthly precipitation to get the wet season and dry season of the river

7. Dry season is also called dry season. It refers to the period when the surface water in the basin is exhausted and mainly depends on the groundwater supply. The ration of dry season in a year varies with the physical geography and meteorological conditions of the basin
wet season refers to the period when the river water is mainly supplied by rainfall or snowmelt. Generally in rainy season or spring when the temperature continues to rise, the river is rich in water. Both are mainly affected by season and rainfall
extended data
the time and month of dry season are not fixed, but determined by the physical geography and meteorological conditions of the basin. The dry season mainly occurs in the dry season. The starting and ending time and ration depend on the supply of the river
in China, the dry season generally starts from autumn and continues to the next spring, which is shorter in the South and longer in the north. Dry season refers to the period when the surface water in the basin is exhausted and mainly depends on groundwater supply. When the proportion of monthly average runoff to annual runoff is less than 5%, it belongs to dry season.

8.

The rainfall concentration period in Guangdong Province is generally from April to September, which is called high water period, and other periods are low water period

in most areas of China, the wet season is from May to September, the dry season is from December to February, and the rest of the normal season is from north to south. There are also spring flood in glacier area and ice flood in Yellow River

The average precipitation of the whole province in flood season is 268.2 mm, accounting for about 60% of the annual precipitation. Due to the convergence caused by weather system and terrain, the rainy season is characterized by convective weather with high intensity and uneven spatial-temporal distribution. Local short-term heavy precipitation occurs frequently, accompanied by strong convective weather such as lightning, gale and hail

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self rescue measures when flood comes:

1; If it has been surrounded by floods, it is necessary to make use of boats, rafts, etc. as far as possible for water transfer

2. When the flood comes too fast to transfer, immediately climb the roof, high house, big tree and high wall to avoid danger temporarily. Don't swim alone to transfer, and try to get in touch with the rescue department. At the same time, pay attention to collect all kinds of floating objects. Wooden pots and barrels are good tools to escape from danger

3. If the house is not strong enough, cracks appear and increase continuously, it is necessary to evacuate in time before the house collapses

4; Keep away from danger, touch or approach, and avoid electric shock

9. The Nile is the second longest river in the world, with a drainage area of 2.8 million square kilometers, equivalent to 1 / 10 of the area of the African continent. The water in the lower reaches of the Nile mainly comes from the sobat River, the Blue Nile River and the Atbara River from the Ethiopian plateau, of which the Blue Nile River is the most important. Sobat river is a tributary of the White Nile. It began to flood in May, and the highest water level appeared in November. At this time, the water level of sobat river is higher than that of the White Nile, which makes it pour backward, thus strengthening the evaporation of water in the upper reaches of the white Nile. The Blue Nile River originates from Lake Tana on the Ethiopian plateau, and its upstream is located in the tropical mountainous rainy area with abundant water resources. Due to the strong and distinct seasonality of precipitation, the river flow changes greatly in the year. In spring, the amount of water is limited, and it begins to rise in June, then it continues to rise rapidly and reaches its peak in early September. During this period, it will also make the White Nile form a backflow. The water level drops from November to December, and then it is the dry season. The minimum discharge in dry season is less than 100 cubic meters per second, about one sixth of the maximum discharge in flood season. Atbara River also originates from the Ethiopian plateau. Due to its northerly location, more concentrated rainfall and small drainage area, its flow changes more greatly. In winter, the river stopped flowing and the river bed became a series of small lakes. Floods in the main Nile reach Khartoum in June and reach their highest level in September. Cairo had its largest flood peak in October. In total, 60% of the total water of the Nile comes from the Blue Nile, 32% from the White Nile and 8% from the Atbara river. In flood season, the Blue Nile accounted for 68%, the Atbara River 22%, and the White Nile 10%; In dry season, White Nile accounted for 83% and Blue Nile 17%. The Nile floods regularly. In northern Sudan, it usually begins to flood in May, reaches the highest level in August, and then graally drops, with a low level from January to May.

10. This is the way in most large hotels.