文中介绍了有关泡面法向矢量、切向速度、曲率和接触线等的计算技术。
Numerical techniques related to the calculation of normal vector, tangential velocity, curvature and contact line are explained in detail.
在测量既有铁路曲线时，传统的测量方式是偏角法，计算曲率和拨距的方法是渐伸线法。
The traditional method to measure the curves in exiting railway is the method of deflection Angle, while the method to calculate the curvatures and the deflection distance is the involute method.
两共轭齿面沿接触线法向的诱导法曲率是衡量机械传动性能的重要指标之一。
The induced normal curvature of two conjugate tooth surfaces along normal direction of contact line is one of the important indexes evaluating mechanical transmission performances.
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