单项选择题X 纠错
A.exhaust pressure
B.valve spring pressure
C.rocker arm movement
D.wrist pin movement
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单项选择题
A.piston rod guides
B.engine thrust bearing
C.crosshead bearing
D.main shaft flexible coupling
单项选择题
A.opening the exhaust ports
B.placed on top of the engine along its centerline
C.farthest from the cylinder head
D.nearest to the cylinder head
单项选择题
A.Intake stroke
B.Compression stroke
C.Exhaust stroke
D.Pumping stroke
单项选择题
A.opening the exhaust ports
B.closing the fuel ports
C.farthest from the cylinder head
D.nearest to the cylinder head
单项选择题
A.indicated horsepower
B.mean effective pressure
C.exhaust back pressure
D.compression pressure
