本文利用声波方程，对阶梯状地表数据进行样条插值处理，得到了与起伏地表比较吻合的四边形网格剖分。
Using acoustic equation, the paper conducts spline interpolation for step surface data and results in quadrilateral grid partition coincident with relief surface.
针对有限元前置处理中二维复杂域四边形网格自动剖分问题，对四叉树网格剖分算法进行了研究。
The arithmetic of quadtree mesh generation was studied in order to solve the problem of the finite element automatic quadrilateral mesh generation for a two dimensional complex region.
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