..._百度空间 ... Geographic Base Information System(GBIS)地理基础信息系统 Geographic Base System(GBS)地理基础系统 geographic boundaries地理边界 ...
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Geographic Base Information System 地理基础信息系统
Spatial data model is the core and base of three dimensional geographic information system design.
空间数据模型是地理信息系统设计的核心和基础。
The Map Symbol Base System is not only one of the basic functions of Geographic Information System, but also an important research issue in GIS.
地图符号库系统不仅是地理信息系统中不可缺少的基础功能模块之一，也是GIS的一个重要研究课题。
Military Geographic Information System symbol is the base component of the MGIS, it's necessary to research the method of the MGIS symbol producing and controlling.
本文围绕MGIS符号的分类及其结构、生成方法和控制策略问题进行深入的分析、研究。
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