A.Exhaust temperatures
B.Raw water pressure
C.Lube oil pressure
D.Air box pressure
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A.rotary；reciprocating
B.up and down；fore and aft
C.fore and aft；up and down
D.up and down；rotary
A.camshaft
B.piston movement
C.exhaust valves
D.vertical drive
A.exhaust pressure
B.valve spring pressure
C.rocker arm movement
D.wrist pin movement
A.piston rod guides
B.engine thrust bearing
C.crosshead bearing
D.main shaft flexible coupling
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
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