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提出了超大单元、结点归一化相对距离判别法这一快速三维自动剖分技术，针对大型水工建筑物的特点，给出了几种常遇问题的实用处理方法；还给出了适合工程实际的超大面判断立体消隐图绘制法和基于Ａｕｔｏｌｉｓｐ语言及Ａｕｔｏ－ＣＡＤ的立体图处理方法．
A fast three-dimensional automatic subdivision technique based on oversized element and normalized relative distance of nodes is proposed. According to the characteristics of large-scale hydraulic structures, several practical solutions to the frequently encountered problems are given. Project actual large surface to determine the three-dimensional blanking plot drawing method and based on Autolisp language and Auto-CAD three-dimensional map processing method.