half of thread angle
常見(jiàn)例句
- This paper describes a new method and device for measuring helical line, pitch diameter, taper and half-angle of thread of petroleum thread gauges.
本文介紹一種測(cè)量石油螺紋量規(guī)的螺旋線、中徑、錐度和牙形半角的新方法及裝置。 返回 half of thread angle