对产品知识进行了层次化的表示，并借助ODLBKIF和基于角度知识描述语言进行了说明。同时，给出了基于本体论的知识推理方法。
The hierarchical denotation of product knowledge is demonstrated by means of ODLBKIF and the described language based on aspect knowledge.
本体是由知识中的概念、概念间的关系以及计算机可以识别的形式化描述语言组成的实体。
An ontology is the entity which composes of the concept of knowledge, the relationship between the concepts and formal description language can be identified by computers.
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。
The paper describes and develops ontology by object-oriented knowledge representation, hence the representation leads to domain algebra system and agent service description language.
然后根据网站结构知识的特点，建立了网站结构本体，并定义网站结构本体描述语言。
According to the features of knowledge of website architecture, we established website architecture Ontology and defined website architecture Ontology Language.
介绍了形式化描述语言LOTOS的特性，结合面向对象技术和状态图的理论知识，给出了基于LOTOS的动态模型的形式化方法，并给出了实例说明。
Combined with theory of object oriented technology and state chart, formalization method of dynamic model based on LOTOS is presented. Furthermore, a case is presented to demonstrate this method.
模板描述语言是面向特殊应用领域的，基于模板的，具有知识表示和知识获取功能的语言。
Template description language is oriented different application field and is based on template. It is a sort of knowledge acquisition and representation language.
模板描述语言是面向特殊应用领域的，基于模板的，具有知识表示和知识获取功能的语言。
Template description language is oriented different application field and is based on template. It is a sort of knowledge acquisition and representation language.
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