Semifinished pistons are oversize and must be finished down to size to fit the cylinders.

半精加工的活塞是加大尺寸的，必须进行修整以便与气缸相配合。

youdao

Semifinished pistons are oversize and must be finished down to size to fit the cylinders.

半精加工的活塞是加大尺寸的，必须进行修整以便与气缸相配合。

youdao