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将二次曲面的求交问题分解为二次曲线的求交并采用交叉迭代的方法，提出了一种曲面求交的新算法．该算法适用于解决ＣＡＤ／ＣＡＭ系统中产生刀具轨迹节点计算问题
The intersection of the quadric surface is decomposed into the intersection of the quadratic curve and the method of cross iteration. A new algorithm of intersection of surfaces is proposed. The algorithm is suitable for solving the problem of tool path node calculation in CAD / CAM system