This paper discussed the main function of Urban Geographic information System (UGIS), and it analyzed the main content, model, interface.
本文论述了城市地理信息系统的主要功能，进而分析了城市地理信息系统的主要内容、模型和界面。
The lighting for night piece of urban piazza exerts the main function for the forming of urban integral night scenery, organizing and enriching of urban nightlife.
城市广场的夜景照明，对城市整体夜间景观的构成和城市夜生活的组织和丰富，都起作主导性的作用。
The main function of urban green road-side corridors are to reduce the automobile tail gas pollution and traffic noise.
由高斯烟流模式可推算出汽车尾气污染物最大浓度值的出现距离，进而确定绿色道路廊道的基本宽度。
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