Lack of hierarchical and structural description of rule processing.
缺乏对规则处理的层次化和结构化的描述。
Metadata of standards documents is the data that gives the structural description of standards resources.
标准文献元数据是对标准文献资源结构化描述的数据。
This paper discusses process of knowledge acquirement, representation, language and process of knowledge structural description.
目的研究机电系统概念描述和故障诊断知识的表达、获取及生成技术。
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