Taking Geographic Information System (GIS) as an urban environmental modelling framework allows modellers to use database, data visualization, and analytical tools in a single integrated environment.

用地理信息系统(GIS)作为一个环境模型框架，允许模型开发者在一个单独的集成环境下使用数据库、数据可视化和GIS的强大分析工具。

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The integrated mapping technology is discussed in light of the power transmission line geographic information system(GIS).

结合输电线路地理信息系统的研究，讨论了集成地图的开发方法。

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This paper presents the administrative structure and function of population geographic information system, and discusses how the demographic-geographical integrated database established.

本文详细介绍了系统的结构、功能，并探讨了系统建设中的一些关键问题，如人口地理综合数据库的建立等。

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