单项选择题
A.dirt
B.fuel oil
C.governor cooling water
D.fuel oil tars
单项选择题 Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()
单项选择题 A faulty thermostatic bypass valve, in a diesel engine cooling system, can result in ()
单项选择题 Movement of the pump control rack in a fuel injection system using individual plunger-type pumps ()