A.not；but
B.neither；nor
C.either；or
D.not only；but also
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A.atmosphere
B.the fresh water
C.compressed air
D.chemical compounds
A.fuel treatment
B.fuel combustion
C.fuel injection
D.fuel separating
A.bottle
B.injector
C.piston
D.barrel
A.a separate motor
B.a cam
C.a generator
D.a chain
A.has begun
B.takes place
C.occurs
D.happens
最新試題
White smoke exhausting from an operating diesel engine may indicate （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
A diesel engine piston ring face is in direct contact with the （）.
Diesel engine control can be obtained by the bridge （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
The main purpose of the piston oil scraper rings is to （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
In a simple mechanical governor, the （）.
What is the function of the thrust bearing?（）
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.