... half of thread angle 牙型半角 half-angle of thread 螺纹半角 included angle of thread 螺纹夹角; 螺纹倾斜角 ...
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half of thread angle 牙型半角
half-angle of thread
螺纹半角
以上为机器翻译结果，长、整句建议使用 人工翻译 。
This paper describes a new method and device for measuring helical line, pitch diameter, taper and half-angle of thread of petroleum thread gauges.
本文介绍一种测量石油螺纹量规的螺旋线、中径、锥度和牙形半角的新方法及装置。
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