基本释义:

螺纹加厚

网络释义

1)spiral thickening,螺纹加厚

2)upset and threaded male end,加厚的阳螺纹端

3)thread ridge thickness,螺纹牙厚

4)reticulate thickening,网纹加厚

5)scalariform thickening,梯纹加厚

6)pitted thickening,纹孔加厚