The central and state agencies official vehicle system reform canceled the vehicle disposal agency procurement project on the 26th in Beijing to open the bid, participating in a total of 22 bidding enterprises, and will eventually select .......
Fixer for recycling silver
The method for recovering silver from the fixing solution includes a precipitation method, a displacement method, a hypochlorite method, a sodium borohydride method, a sodium dithionite meth.......
In greenhouse management, the most important thing is how to balance the greenhouse environment. For different greenhouse crops, the environmental indicators they need are not only temperature, but also humidity, light, etc. Therefore, how to achieve the balance of the greenhouse.......
Recently, Beijing Liebang Instrument Technology Co., Ltd. (hereinafter referred to as "the state apparatus") successfully developed a battery height automatic detection system. The system has the advantages of high measurement accuracy, fast detection speed, and the scr.......
The development of the instrumentation industry is very rapid. In recent years, green environmental protection and the developme.......
The development of the instrumentation industry is very rapid. In recent years, green environmental protection and the developme.......