单项选择题
A.repaired B.replaced C.replenished D.repeated
If diesel oil in this tank is used, the （） of the oil m...
单项选择题If diesel oil in this tank is used, the （） of the oil must not exceed 120 degree F.
A.viscosity B.flash point C.acid value D.temperature
Of a kind of liquid is used to cool the diesel engine, ...
单项选择题Of a kind of liquid is used to cool the diesel engine, it is invariably called （）
A.lubricant B.coolant C.combustion product D.second refrigerant
If （） are taken at regular intervals, any unequal distr...
单项选择题If （） are taken at regular intervals, any unequal distribution of load will be easily found out.
A.differential of crank-webs B.indicator diagrams C.lube oil reading out D.misalignment of crank-throws
