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.
该方法不仅可以用于空间曲率检测的标定工作，也可适用其他一些空间矢量的检测工作。
The geometric meaning of this method is then defined not only for measurement of spatial curvature, but also for inspection for some other spatial vectors.
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