出油阀和出油阀座也是一对精密偶件，配对研磨后不能互换，其配合间隙为0.01。

Valve seat and the oil is even a pair of precision parts, after the pair are not interchangeable grinding, and its clearance of 0.01.

youdao

出油阀和出油阀座也是一对精密偶件，配对研磨后不能互换，其配合间隙为0.01。

Valve seat and the oil is even a pair of precision parts, after the pair are not interchangeable grinding, and its clearance of 0.01.

youdao