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本文在功能特征建模方法的基础上，提出了组合广义功能特征的产品定义方法．用该方法建立的组合广义功能特征信息模型，实现了产品组合结构的功能与组合几何特征之间的映射，使得组合广义功能特征的相关设计过程可以交叉进行．
Based on the method of functional feature modeling, this paper proposes a product definition method that combines generalized functional features. The combined generalized functional feature information model established by this method realizes the mapping between the function and the combined geometric features of the product portfolio structure so that the relevant design process of the combination of generalized functional features can be cross-linked.