单项选择题
A.an oily water separator B.a purifier C.a centrifugal compressor D.a clarifier
Emulsification of oil will occur when mixed with （）.A.a...
单项选择题Emulsification of oil will occur when mixed with （）.
A.air B.black oil C.water D.ice cream
The bilge main is arranged to drain any watertight comp...
单项选择题The bilge main is arranged to drain any watertight compartment （） ballast, oil or water tanks and to discharge the contents overboard.
A.rather than B.other than C.in addition that D.except for
Oil water separators are used to ensure that ships dont...
单项选择题Oil water separators are used to ensure that ships dont discharge oil when pumping out （）.
A.ballast water B.boiler water C.bilge water D.sewage water
