Since the beginning of this year, Jiangdu District has focused on key shortcomings in the mechanization of grain production, focused on the construction of drying capacity, guided towns to actively implement incentive support policies, and assisted scale operating entities to implement dry.......

What are the causes of frosting in the constant temperature and humidity test chamber refrigeration compressor?

First,.......

As an exotic species, the genus Spodoptera has been widely concerned in the agricultural circle for two days. It has a strong reproductive capacity. A female moth can produce 2000 eggs; it has a wide range of suitable conditions and can survive in the temperature range of ten to .......

After the indoor heat gain problem was modified and modified, the exterior wall decoration of the building was changed from ordinary brick to glass curtain wall, the hollow floor of the podium was added, and the hemispherical glass zenith was set on the roof of the podium. Due to chang.......