氮肥

Aerogen Micro Organizations Algae microorganisms in the water also populate overpopulate because of the surplus Nitrogennitrogen.

水中藻类微生物过于密集式由于过量。

The paper introduces the corrosion prevention of the automatic instruments for thermopair,resistance thermometer, transmitter, flowmeter levelmeter in Chemical processes.

介绍工业自动化仪表在，磷生产过程中，对检控制仪表，热电偶、热电阻、变送器、流量计、液位计选。