單項選擇題

The cylinder oil will have to neutralize the acidic products of combustion and have good （） properties to keep the metal surfaces clean.

A.detergent
B.de-oiling
C.defrosting
D.demulsifying

你可能感興趣的試題

單項選擇題

As for turbine oil, contact with water in the form of steam will be inevitable so good （） properties will be essential.

A.defrosting
B.de-oiling
C.demulsifying
D.dehumidifying

單項選擇題

Any carbon built up on surfaces must be washed away by （） additives and held in suspension by a （） additive.

A.dispersant；detergent
B.detergent；dispersant
C.dispersant；dispersant
D.detergent；detergent

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