Measuring method of DC resistance of wire and cable

At present, there are mainly two methods for measuring the DC resistance of wire and cable: bridge method and current method. The bridge method has a single-arm bridge method and a double-arm bridge method. The single-arm bridge method measures a resistance of 1 ohm or more, the double-arm bridge m

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Improvement of automatic control system for axial flow fan

The axial flow fan is developed on the basis of the centrifugal fan, and has a wide range of applications due to its high efficiency and wide working range. Our axial flow fan was put into operation on March 12, 2001 in order to meet the needs of blast furnace development under the condition of d

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Live to learn the old car keys can also be used so

When we get a new car or want to drive a car, the first thing that comes to mind is whether there is a car key in the hand. Without a car key, driving a car is impossible. And do you really know about this gadget that we are playing with? Or do you think th

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The concept of agricultural development with Chinese characteristics: the integration of the development of the first, second and third industries was officially written in the communique

[China Agricultural Machinery Industry News] Recently, the G20 Agriculture Ministers Meeting and series of activities were successfully held in Xi'an, Shaanxi, China. At the meeting, European Union officials at the meeting also spoke highly of China's contribution to world food and agricult

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