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單項(xiàng)選擇題

The cooling water is in direct contact with the outer surface of the liner as a result of which it is termed a （）.

A.water liner
B.wet liner
C.dry liner
D.drown liner

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單項(xiàng)選擇題

The cooling of the piston is carried out by circulating （） across the underside of the crown and inside the ring belt or through specially shaped passages.

A.sea water
B.scavenging air
C.lubricating oil
D.fuel oil

單項(xiàng)選擇題

The cooling liquid used for the cylinder may be referred to as （）.

A.jacket water
B.make-up water
C.boiler water
D.flushing water

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