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1·The intersection of sweep volume with complicated surface normal is transformed into computation of intersection between triangular mesh and directed line segment.

将扫描体与复杂曲面法矢的求交问题，转化为三角网格与有向线段之间的求交计算。

2·The cutter is directed to move along each line segment one by one in order to generate the smooth circular path.

切削是沿着每一小线段一个一个的进行以产生光滑曲线路径。