For normal alkali corrosion procedure of aluminum alloy, the treatment time is long, and exceeding corrosion will occur.
前言： 常规的铝合金碱蚀工序时间长，易产生“过腐蚀” ；
The acute biological toxicity of residual chlorine and five organic chlorides against normal backflow activated sludge in a CHLOR-ALKALI factory was examined.
取某氯碱厂正常回流的活性污泥对余氯及五种有机氯化物进行急性生物毒性试验。
Under normal conditions, the major odor pollutants come from alkali waste treatment unit, sour water stripping unit, ammonia refining unit, sulfur recovery unit as well as waste water treatment site.
正常生产情况下的主要恶臭污染源为碱渣处理装置、酸性水汽提装置、氨精制装置、硫磺回收装置和污水处理场。
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