Coulostatic method has been adopted to determine chemical OxygenDemand (COD) in the waste water of Petrochemical Plant of Daqing Petroleum Administration.
大庆油田化工总厂废水中化学需氧量(COD)的测定采用库仑法。
QC Group of Styrene Workshop, Chemical Plastic Plant, Fushun Petroleum and Chemical Company.
抚顺石化公司化工塑料厂苯乙烯车间QC小组。
This chemical and petroleum plant is completely automatic.
化工厂是完全自动化的。
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