提出了本体表达地理空间实体类型语义的方法；
The method of semantics expression of geospatial entity classes based on ontology is put forward.
地理空间实体类型语义相似度对于类型数据库综合具有重要理论意义。
Semantic similarity among geospatial entity classes is an important theoretic problem in categorical database generalization.
面向对象的地理信息模型以地理空间实体为对象，地理实体可以从几何数据、符号数据、实体数据、属性数据的角度来进行数据的组织。
A geo-spatial entity which can be organized from geometric data, symbol data, entity data, attribute data is regarded as an object to the object oriented geographical information model.
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