Strengthening the analysis of agro-meteorological conditions will help avoid trends, reduce the risk of agricultural planting, and make good use of agro-meteorology to increase production and income. So how to grasp the changes in agro-meteorology? Previously relying on weather fo.......
At present, CB-B gear pump in the dump truck and construction machinery operating mechanism used more, now its common failures and troubleshooting are described below, for reference.
1, the causes of vibration and noise and exclusion
(1) inhale air
â‘ CB-B gear p.......
First, the application introduction
LP-type pump vertical drainage pump, the pump covers an area of ​​small, easy to use, the basic low cost. Pump impeller immersed in the fluid being drawn, start without irrigation. The pump is suitable for pumping non-corrosive, the .......
In the process of growth and development of corn, in addition to the three major nutrients nitrogen, phosphorus, potassium, but also boron, zinc, manganese, molybdenum and other trace elements. Although these trace elements are used in small quantities, their role is.......
Liu Shiyu “In 2005, due to the continued impact of rising prices of raw materials such as steel, our performance will decline, but because we have learned from the past, we have fully considered the impact of many factors and made preparations. The year-on-year rate of decline was b.......