Since the pesticide is mainly attached to the surface of fruits and vegetables during the spraying process, the effective washing and processing methods can reduce the residual amount of the pesticide .
Soaking and rinsing with water can…
The use and maintenance of laminate flooring is relatively simple. As long as you pay attention to the following points in daily use, you can ensure the normal use of the floor.
1. Always keep the…
Introduction to column chromatography
First, the introduction
Ion exchange chromatography, gel filtration chromatography and affinity chromatography are three classical chromatographic techniques for separating proteins, depending on the principle of packing m…
Can you imagine that one day your smart phone screen is a mini solar panel? With the researchers at the University of California, Los Angeles (UCLA), developing a new double-layer transparent thin-film solar cell, this vision will soon be realized. …
In the production process of raising beef cattle, some professional households often feed more concentrates in order to make the beef cattle grow faster and longer, especially adding a large amount of high-quality protein feed such as bean cake, peanut cake and soybean. Adding protein feed …
Application of non-asbestos brake ring for electric hoist conical rotor motor Asbestos high temperature volatile matter is a carcinogen. According to the trend of environmental protection, it is an inevitable trend that the electric hoist cone rotor motor is suitable for as…