多态模型是面向钣金零件制造全过程，由多个相互联系的零件状态组合而成的信息模型。

Multi-state model is the information model which is made up of correlated workpiece states orienting the whole manufacturing process.

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多态模型是面向钣金零件制造全过程，由多个相互联系的零件状态组合而成的信息模型。

Then, a manufacturing model management methodology based on multi-state model for user, data and workflow was proposed.

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