Based on fault tree analysis (FTA) theory, an object-oriented knowledge representation method in a fault diagnosis expert system for machine tools was studied.
针对所研究的机床故障诊断专家系统，以故障树分析法为基础，采用面向对象的事件知识表示方法。
By classification of the milling knowledge, this paper researched the application of object-oriented knowledge representation in the milling parameter optimization expert system.
通过对铣削知识的整理分类，对产生式知识表示法和面向对象知识表示法在铣削参数专家系统中的应用进行了研究。
The paper describes and develops ontology by object-oriented knowledge representation, hence the representation leads to domain algebra system and agent service description language.
为此，文中用面向对象的知识表示方法描述并建立本体，并以此为基础形成领域操作代数系统和智能体服务描述语言。
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