你可能感興趣的試題

單項(xiàng)選擇題

Coolant can be lost from a diesel engine jacket cooling waster system by leakage from（）

A.cylinder head cracks
B.piping joints
C.pump leaking
D.all of the above

單項(xiàng)選擇題

Ring groove inserts are occasionally used on aluminum alloy piston to（）

A.reduce the ring groove wear rate
B.seal against crankcase vapors
C.lessen the wear on aluminum part of the cylinder
D.allow for the greater expansion rate of aluminum

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

An overcorrecting and unstable engine governor operation is known as（）.

你可能感興趣的試題

Coolant can be lost from a diesel engine jacket cooling waster system by leakage from（）

Ring groove inserts are occasionally used on aluminum alloy piston to（）