The paper analyzes machining error and its effect on the tooth profile accuracy according to the principal error, and gives the methods to diminish the error.

本文从方牙丝杠磨削的原理误差入手，分析了方牙丝杠加工的原理性误差及其对工件牙形精度的影响程度，提出了减小加工方牙丝杠原理误差的措施。

youdao

Involute CAM is an important attachment which produce involute profile in the copying gear grinder; the accuracy of which directly decide the profile accuracy of gear which is grinded.

渐开线凸轮是靠模式齿轮磨床生成渐开线齿形的重要附件，其精度直接决定着被磨齿轮的齿形精度。

youdao

This paper presents a high efficient process method of a steep lead tread of coupling screw and studies the profile accuracy by using electronic computer and arrives at the profile error curve.

介绍了一种大导程波形联结螺纹的高效加工方法，借助计算机进行了螺纹牙形的精度分析，得出了齿形误差曲线。

youdao

Since football requires so many different body types and skill sets immense speed, overpowering strength and pinpoint accuracy there is probably someone in the NFL who fits the basic physical profile of the top stars in every Olympic event.

WSJ: Menu

The accuracy of this software is limited today (by, among other things, pictures shot in profile), but the progress in this field is remarkable.

WSJ: Eric Schmidt and Jared Cohen: The Dark Side of the Digital Revolution