描述本体的定义、分类、本体的建模元语和表示本体所采用的语言。

I describe the definition and classification of ontology as well as the languages of describing ontology.

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通过使用本体编辑器，能够采用可视的方式建模、定义和表示实体关系，然后将本体导出为XML或资源描述框架(Resource Description Framework, RDF)，以供在应用程序中使用。

Using an ontology editor, you can visually model, define, and express entity relationships and then export the ontology as XML or Resource Description Framework (RDF) for use in your application.

youdao

最后，根据World Wide Web Consortium (W3C)的说明，本体定义用于描述和表示知识领域的术语。

Finally, according to the World Wide Web Consortium (W3C), ontology defines the terms used to describe and represent an area of knowledge.

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