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.
研究目的：研制基于遥感的土地利用与覆被分类系统，为国家土地利用与覆被基础数据库建设和宏观土地资源遥感动态监测提供分类依据。
The classification of class in interactive graphic system is proposed firstly by the basic primitive class, static aggregation class and dynamic aggregation class.
首次提出将交互式图形系统中各种图形对象类划分为基本图元类、静态聚合对象类和动态聚合对象类的分类分法。
With the help of knowledge and experience from many experts, this paper researches the method of knowledge classification and representation, and discusses system designing of dynamic knowledge base.
在获取大量专家知识和经验的基础上，对专家知识进行分类研究并提出相应的表示方法，同时设计了可动态更新的知识库系统。
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