它和曲面有相同的法向量。

All right, it has the same normal vector as the surface.

youdao

局部拟合因其具有与通用CAD系统相同的数学模型，所以它是复杂曲面测量几何造型系统的常用方法。

The local fitting method is a common method of measure and geometric modeling systems for complicated curved surface because of its mathematical model the same as that of current CAD system.

youdao

连续五轴加工利用一参考曲面、或两个具有相同数目点的轮廓、或一轮廓一点。

Continuous 5 axis machining USES either a reference surface, or two contours (which must have the same number of points) or a contour and a point.

youdao