If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.

A diesel engine piston ring face is in direct contact with the （）.

A thrust bearing is used with a propulsion diesel engine to （）.

Diesel engine control can be obtained by the bridge （）.

When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）

If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.

Combustion knock occurring in a diesel engine can be caused by （）.

Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.

If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.

In a simple mechanical governor, the （）.