分析了CAD/CAPP集成技术的难点和当前特征建模的不足，基于特征转换思想提出了分层次建立特征模型的方法。
The difficulty of integration of CAD/CAPP and the disadvantage of several feature modeling were analyzed, and levels of feature model were brought forward based on the thinking of feature conversion.
分析了CAD/CAPP集成技术的难点和当前特征建模的不足，基于特征转换思想提出了分层次建立特征模型的方法。
The difficulty of integration of CAD/CAPP and the disadvantage of several feature modeling were analyzed, and levels of feature model were brought forward based on the thinking of feature conversion.
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