How to realize the research of knowledge acquirement and classification, representation, building knowledge base and knowledge base management system, is a very important problem.
如何实现对摩托车总体设计知识的提取与分类、表示、建立知识库及其管理系统的研究，是迫在眉睫的问题。
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The purpose of this study is to develop a land classification system for national land use and land cover database building and macro land resources dynamic monitoring.
It constructs a standard classification ontology based on web-glossary by extracting classified structures of websites and building mappings between them in order to get unified views.