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單項選擇題

The cleaned heated oil, after passing through the centrifuges, is to be pumped to a （）.

A.settling tank
B.service tank
C.ballast tank
D.drain tank

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單項選擇題

The cast iron guide-ways for （） are attached to the top section and seal off the crankcase.

A.the connecting rod
B.the cross-head
C.the piston rod
D.the air box

單項選擇題

The cast iron（）for the cross-head are attached to the top section and seal off the crankcase.

A.cylinder cover
B.cross-head shoes
C.guide-ways
D.scavenging boxes

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