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本文主要从易于用户理解和接受的角度阐述了用手扶跟踪数字化仪进行数据输入时利用独立实体编码法的优点在区域多边形边界数据存贮和组织中的实用方法；研究和探讨了实体编码输入文件与数据库拓扑结构文件之间相互转换的途径。
In this paper, the practical methods of using the independent entity coding method to store and organize the boundary polygons in regional polygon data are described from the point of view of easy understanding and acceptance by users. The method of entity coding input File and database topology file conversion between the ways.