单项选择题
A.water liner B.wet liner C.dry liner D.drown liner
The cooling of the piston is carried out by circulating...
单项选择题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
The cooling liquid used for the cylinder may be referre...
单项选择题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
The cooler as the liquid becomes, （）.A.the faster it wi...
单项选择题The cooler as the liquid becomes, （）.
A.the faster it will evaporate B.the slower it will condense C.the slower it will evaporate D.the faster it will flow
