研究的具体思路为：利用专业三维CAD软件进行实体建模，然后通过与CAD软件进行信息交换来得到实体信息并进行实体重现，以找到一种替代实体建模的方法。
The main idea of this paper is to find a way to reduce the work of development of solid modeling for FEA software by exchanging information with CAD software.
这些算法和数据结构都围绕着一个问题，就是如何减少三维实体的点阵信息，以提高三维图形的显示速度。
The algorithms and the data structure are employed for reducing the grid information of 3d entity, so as to improve the display velocity of the 3d entity.
逐步详细讨论了进行信息预处理、二维实体环重构和三维实体重构时的关键技术。
The key techniques for information pre-treating, reconstruction of 2D loops and 3D entities are discussed in detail step by step.
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