在内部作成圆形凸肩以代替锐缘孔板状的侧面。

It has rounded shoulders inside instead of the sharp orifice - like edge.

youdao

在内部作成圆形凸肩以代替锐缘孔板状的侧面。

It has rounded shoulders inside instead of the sharp orifice-like edge.

youdao

在内部作成圆形凸肩以代替锐缘孔板状的侧面。

It has rounded shoulders inside instead of the sharp orifice-like edge.

youdao