单项选择题
A.repair list B.spare parts order list C.price list D.bunker list
The withdrawing of the cylinder liners, in general, dep...
单项选择题The withdrawing of the cylinder liners, in general, depends on their （）.This may amount to approximately 1/120 of the diameter in some engines.
A.correct maneuvering B.wear C.working efficiency D.maintenance
The way to reduce （） is to build up a film of lubricant...
单项选择题The way to reduce （） is to build up a film of lubricant between any two surfaces that rub against each other.
A.friction B.collision C.inertia D.resistance
The viscosity regulator controls the fuel oil temperatu...
单项选择题The viscosity regulator controls the fuel oil temperature （） provide oil at the correct viscosity for combustion.
A.in order that B.because of C.in order to D.owing to
