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单选题
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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单选题The power developed by a large slow-speed main propulsion diesel engine is dependent upon the （）A
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cylinder blockD
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Cylinder head valvesB
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shape of combustion spaceC
turbulence in combustion spaceD
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