Conceptual process planning is one of important activities in the early product development stage.
概要工艺规划是产品开发早期阶段的重要活动之一。
However, detailed product information couldn't be obtained so that it was difficult to carry out conceptual process planning.
但由于该阶段还不能获得详细的产品信息，使得概要工艺规划难以进行。
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。
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