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。
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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