The practice of storage of Chinese herbal medicine warehouses has proved that if the water content of Chinese herbal medicines is controlled within certain limits under certain conditions, quality will not change. For example, when the temperature is 30°C in the north, the moisture cont.......
Plasma machine seed processing technology is a "863" project of the Ministry of Science and Technology, and its plasma machine has passed the identification. In the past two years, the Jilin Provincial Government and the Changchun Municipal Government approved the introduction of.......
The use of small whole-planted sowing can avoid the strict disinfection of the knife and spread pathogens, thereby reducing the incidence of plants; small whole potato has good water retention, and the buds and seedlings are resistant to drought and cold, and the emergence of seedlings is .......
1, first shellfish washed with seawater, forced to open the shells, wash the mantle and visceral group, remove the complete shell, rinse the shell with clean sea water, rinse time .......
First, the process of choice of raw materials: I.......
1, piston ring. In order to avoid misalignment of.......