The sources of fluorine-containing gas are analyzed from the extraction of WPA, flash evaporation cooling of slurry and concentration system.
阐述湿法磷酸生产的萃取分解、萃取料浆闪蒸冷却及浓缩系统含氟气体的产生过程；
Derivative gas chromatography is used to analyze the fluorinated compound derived from the gas out of the rare earth concentrates containing fluorine.
应用衍生气相色谱法测定含氟稀土精矿焙烧逸出气体中的氟化物。
The leather treated using fluorine containing retanning agent has a soft hand, good gas permeability, and better water , oil and soil resistances and so on.
含氟复鞣剂可以赋予皮革良好的手感、优异的透气性、抗水抗油性、抗污性等性能。
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