4.1 机电产品的关键特征 产品关键特征（PKCs，Product Key Characteristics）是 一个使能器（enabler），能够将离散、互不联系的知识结合 起来。
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The following key characteristics differentiate the product master data domain from the customer domain
产品主数据领域与客户领域的主要差异如下
Key characteristics were employed to express rough-granularity incomplete product information and a strategic framework of conceptual process planning was constructed.
提出了基于关键特性表示粗粒度的非完备产品信息，并建立了概要工艺规划的策略框架。
Therefore, core process skeleton based process planning approach was proposed on the basis of key characteristics which have been proposed to express rough-granularity incomplete product information.
为此，采用关键特性表示粗粒度、非完备的产品信息，提出基于核心工艺框架的工艺设计方法。
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