A.crosshead
B.crankpin
C.crank journal
D.gudgeon pin
第1题
A.reciprocating
B.rotating
C.running
D.removing
第2题
A.Decrease the air density
B.Increase the exhaust temperature
C.Decrease the lube oil temperature
D.Increase the air density
第3题
A.cooling water
B.compressing air
C.compressed air
D.cylinder oil
第4题
A.have a larger than normal dead band
B.produce excessive speed response to a load change
C.respond slowly to any change in engine load
D.stabilize engine speed at the new governor setting
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