Bring forward a new method of whole numeric control processing of the piston ring.

提出了一种新型活塞环全数控加工机床结构方案。

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Thus the function of the distance between valve and piston is put forward.

据此提出气门和活塞间距离的函数。

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Thus the function of the distance between valve and piston is put forward.

据此提出气门和活塞间距离的函数。

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