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1·Meanwhile, we change the thread parameters, study the stress distribution caused by changing the pitch, taper and thread Angle, this work can provide a reference for manufacture.

同时改变钻具接头的螺纹参数，研究螺距、锥度、牙型角的改变对其应力分布的影响，为钻具接头的生产加工提供参考。

2·The equations for thread taper, thread pitch, thread angle and height of thread can be derived on the base of fitted lines, which are accurate enough to meet the needs of industrial measurement.

该方法可测量螺纹的锥度、螺距、螺纹夹角和螺纹高度，测量精度可以满足工业测量要求。

3·The top thread trimmer could follow the user's requested to adjust any precise cutting Angle.

专利设计的上饰线切线刀，可依使用者之需求调整至最适当的任何切线角度。

4·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。

5·The thread parameters i. e., Major diameter, Minor diameter, Pitch, Angle and Call Out fields are not editable.

线叁数也就是，主修直径、较小的直径，程度、角度和呼叫出自领域不是可编辑的。

6·Generation 4 Clousure Technology—A reverse-angle set screw designed to thread easier, hold stronger, and reduce the implant even.

第四代螺纹技术——螺塞反角螺纹设计，更易于安装，对棒抱紧力更强，进一步减少钉头体积。