所以，由此产生的机加工痕迹是一条具有很小节距的螺旋线，该节距等于进给。因此机加工表面始终是圆柱形的。
The resulting machining marks are, therefore, a helix having a very small pitch, which is equal to the feed. Consequently, the machined surface is always cylindrical.
建立了绕椭圆柱面以等角速度旋转，又以变速度上升的非定常螺距的螺旋线方程。
A helix equation of time-varying pitch is established, revolving elliptic cylinder as equal angular velocity and rising as variable velocity at the same time.
本文提出沿圆柱表面的螺旋线对圆柱度作动态测量，并应用最佳一致逼近方法对其展开的测量数据来评定圆柱度误差值。
This paper presents a method to evaluate cylindricity errors. It USES best uniform approximation to process the sample data measured continually and dynamically along a cylindrical spiral.
本文提出沿圆柱表面的螺旋线对圆柱度作动态测量，并应用最佳一致逼近方法对其展开的测量数据来评定圆柱度误差值。
This paper presents a method to evaluate cylindricity errors. It USES best uniform approximation to process the sample data measured continually and dynamically along a cylindrical spiral.
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