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
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
Proper filtering and straining of fuel oil is important because the （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Diesel engine control can be obtained by the bridge （）.
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If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
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?（）
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.