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

在内部作成圆形凸肩以代替锐缘孔板状的侧面。

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

在内部作成圆形凸肩以代替锐缘孔板状的侧面。

youdao

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

在内部作成圆形凸肩以代替锐缘孔板状的侧面。

youdao