A.defrosting
B.de-oiling
C.demulsifying
D.dehumidifying
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A.dispersant；detergent
B.detergent；dispersant
C.dispersant；dispersant
D.detergent；detergent
A.oxidation resistance
B.carbon-forming tendency
C.demulsibility
D.acidity
A.lower than
B.higher than
C.as same as
D.better than
A.the worse
B.the better
C.the smaller
D.the greater
A.absolute value
B.relative value
C.constant value
D.set value
最新試題
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Under MARPOL Code the ship to which it applies has to carry （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
（） is not installed on the main switchboar.
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish