要提高英语交际能力，就必须掌握英语模糊表达法的有关知识和使用技巧。
To improve communicative competence, one must have a good command of the relevant knowledge of the expression of vague language in English and of how to make use of it.
本系统工艺知识的描述与表达采用了产生式规则法和框架法，以成组技术(GT)为基础，以零件组为基本单元分别进行。
The description of the process knowledge adopts the method of productive rule and frame in this system. It bases on GT and is done according to parts group.
系统实现“四库一体化”结构，提出全新的方法库概念和适合于大体量知识库的产生式规则法、框架法、关系数据库法结合的知识表达体系。
A new concept of method base and knowledge expressing system by combination of production rule method, frame method and data base method appropriate to big knowledge base was proposed.
最后，粗糙集关系图表示法的知识表达系统研究。
Last, the Research of Rough Set Relationship Graphics Representation Knowledge Base.
最后，粗糙集关系图表示法的知识表达系统研究。
Last, the Research of Rough Set Relationship Graphics Representation Knowledge Base.
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