单项选择题
A.dynamically balanced
B.statically balanced
C.counter balanced
D.resonantly balanced
单项选择题 When centrifuging heavy fuel oil, an important factor to consider is the （） (1) flow rate (2) viscosity of the fuel oil
单项选择题 Higher than normal jacket water temperatures occurring in all cylinders of a diesel engine can result from a/an （）.
单项选择题 Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an （）.