对模糊地理实体的点实体、线实体和面实体的模糊性进行了研究，就它们的模糊表示进行了阐述。
The paper studies fuzzy characters about fuzzy geographic entities such as fuzzy point entity, fuzzy line entity and fuzzy surface entity, and discusses the representation about fuzzy entities.
将企业的各个业务领域链接在一起的核心数据实体跨所有业务线保持一致和可信。
That the core data entities linking together the business domains of an enterprise are consistent and trusted across all lines of business.
简言之，矢量数据利用最简单的拓扑实体—点、线和多边形，并在二维笛卡尔坐标系统中固定它们来描述地理特征。
In short, vector data take the simplest topological entities — points, lines, and polygons — and anchor them within a 2-d Cartesian coordinate system to describe geographical features.
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