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單項(xiàng)選擇題

The diesel engine is a type of internal combustion engine which ignites the fuel by injecting it into hot, high pressure air in a （）.

A.air bottle
B.air compressor
C.crank case
D.combustion chamber

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單項(xiàng)選擇題

The diesel engine is a type of （）.

A.turbine engine
B.gas turbine
C.steam engine
D.internal combustion engine

單項(xiàng)選擇題

The diameters of the crankpins should be measured using （）.

A.a micrometer
B.a bridge gauge
C.a spanner
D.a wrench

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