名词解释题挥发油(Volatile oils)
名词解释题
挥发油(Volatile oils)
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相关考题:
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Volatile:a) What does the keyword volatile mean? Give an exampleb) Can a parameter be both const and volatile? Give an examplec) Can a pointer be volatile? Give an example
The pour point of lubricating oils is affected the most by which of the following?A.Extensive centrifugingB.Wax contentC.Water contentD.Acid content
Before any machinery is put in operation,you should ______.A.ventilate all compartments,see that the machinery is clean and there are no obstructionsB.just turn the key and start upC.take for granted that there are no fuel leaksD.assume there are no volatile fumes in the engine space
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单选题In large marine diesel engines cylinder oils usually contain additives formulated to impart the () to clean the rings and grooves.AinefficiencyBoilinessCdetergencyDpurity
单选题The treatment of the fuel oils involves storage, heating, filtering and()AcentrifugingBpressurizingCatomizationDigniting
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单选题Emulsion oils and sodium nitrite are both approved additives, but () cannot be used if any pipes are galvanized or if soldered joints exist.Athe latterBlatterCformerDthe former
单选题Those generally used additives for cooling water are either anti-corrosion oils or inorganic().AgasesBpaintsCinhibitorsDdetergent
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单选题Before any machinery is put in operation,you should().Aventilate all compartments,see that the machinery is clean and there are no obstructionsBjust turn the key and start upCtake for granted that there are no fuel leaksDassume there are no volatile fumes in the engine space
单选题() fuel oils () lubricating oils require treatment before passing to the engine.ABoth;andBNeither;norCEither;orDBoth;or