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介绍了用于注塑成型分析的曲面造型系统的总体结构、数据层次关系和数学方法，研究了曲面生成、分割、求交、修剪和网格划分的算法。
The overall structure, data hierarchy and mathematical methods of the surface modeling system for injection molding analysis are introduced. The algorithms of surface generation, segmentation, intersection, pruning and meshing are studied.