单项选择题
A.piston gudgeon pin B.piston skirt C.cross-head D.cross-head pin
The loss of （） from an air compressor could lead to an ...
单项选择题The loss of （） from an air compressor could lead to an overheated air discharge and possibly an explosion in the pipelines leading to the air reservoir.
A.lubricating oil B.compressed air C.cooling water D.sealing ring
The joint face between the cylinder cover and the liner...
单项选择题The joint face between the cylinder cover and the liner is arranged （）the combustion process as possible.
A.such far away from B.such near by C.as far away from D.as near by
The interface between the liquid seal (water) and the o...
单项选择题The interface between the liquid seal (water) and the oil should be positioned （） possible to the bowl periphery.
A.as far as B.as soon as C.as close as D.as closer as
