A、A.deposition chamber
B、B.oxidation pool
C、C.disinfection chamber
D、D.all chamber
更多“Before marine sewage treatment plant works （） should be filled with fresh water.”相关的问题
A、A.aeration tanks B、B.settling tanks C、C.disinfection agent D、D.anaerobic bacteria
A、breaking up solid matter into fine particles B、precipitating non-decomposed waste in a collection tank C、chemically adjusting the sewage ph to 7-0 D、eliminating bacterium coli from the sewage
A、the Coast Guard B、the ABS C、the shipyard fire department D、a certified marine chemist
A、cooled to appropriate temperature B、warmed up gradually to appropriate temperature C、opened up and renewed D、ground and polished
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