Then the manpower intelligent method is used to transformed process engineers'knowledge as system internal information and store in the knowledge base. This step establishes process knowledge base.
其次采用人工智能的产生式表示方法，将工艺专家的知识转化为系统的内部表现形式并存储到知识库中，详细地确立了工艺知识库的内容；
The representation of knowledge task process is a base, upon which efficiency improvement is made available.
表征知识作业过程是提高作业效率的基础。
According to the openness of process planning knowledge base, this paper proposes a hierarchy knowledge base model based on open structure.
根据工艺设计知识库的开放性要求，提出了一个基于开放式结构的层次化知识库模型。
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