单项选择题

Cooling of engine is achieved by circulation a cooling liquid around internal passages within the （）.

A.boiler
B.heater
C.engine
D.cooler

<上一题 目录 下一题>
热门 试题

单项选择题
Cooling enables the engine metals （） their mechanical properties.

A.to retain
B.to remain
C.to maintenance
D.to have
单项选择题
Constant cooling the various components of diesel engine has a number of functions except for （）.

A.good lubrication
B.low thermal stress
C.good mechanical properties
D.acid corrosion
相关试题