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将基于约束的形状特征参数化设计应用于钣金工艺设计，在ＡｕｔｏＣＡＤ平台上实现了以参数化设计为基础的钣金展开毛坯图的绘制
The constraint-based parametric design of shape features is applied to the sheet metal process design. The sheet metal drawing based on parametric design is realized on the AutoCAD platform.