When it comes to model and realize the parametric CAD system of some corporation series of production, this model is perfectly proper.

并且系统容易扩充与修改，特别适合于某特定行业的系列化产品的参数化CAD系统建模与程序实现。

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Based on the analysis of flush toilet modeling that is one of the typical ceramic, with UG as software platform, flush toilet parametric CAD system is developed.

本文在对典型的卫生瓷产品—坐便器造型分析的基础上，以UG软件为平台开发了坐便器参数化CAD造型模块。

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Computer aided drawing is an important part in bearing CAD system, parametric drawing of roller bearing changes the traditional manual drawing method and realizes automation of roller bearing drawing.

计算机辅助绘图是滚动轴承CAD系统的重要组成部分，滚动轴承零部件的参数化绘图改变了传统的手工绘图方式并实现了自动绘图。

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