该算法首先利用结式法计算出两二次曲面相交时交线的投影方程，再对投影方程进行分解等处理。

The algorithm used the resultant method to computing the intersection's projection equation and deal with the projection equation through decomposition and so on.

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本文介绍的方法，对时间场法求取等时线方法进行了改进。

The method introduced in this paper improves the contour way which is gained from time field.

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本文介绍的方法，对时间场法求取等时线方法进行了改进。

The method introduced in this paper improves the contour way which is gained from time field.

youdao