1·Database is the basis of geographical information systems (GIS).
数据库是地理信息系统(GIS)的基础。
2·Finally, it describes the course of visualization in the geographical information systems.
最后针对地理信息系统中的可视化过程进行了描述。
3·Geographical Information Systems (GIS) are characterised by the ability to integrate geospatial data from a wide variety of sources.
地理信息系统(GIS)的特点是能从各种各样的来源中整合地理空间数据。
4·This paper presents the error models developed for handling geometric features in three dimensional Geographical Information Systems.
本文提出了三维地理信息系统中几何特征的误差模型。
5·One side, GPS (Global Position Systems) and GIS (Geographical Information Systems) become the direction of the new generation of mobile technology;
一方面，GPS（全球定位系统）和GIS（地理信息技术）成为新一代移动技术的发展趋势；
6·Digital elevation model (DEM) is the fundamental infrastructure of geographical information systems and has wide applications in both military and civil areas.
数字高程模型(dem)是重要的基础地理信息数据，在军事和民用领域有着重要的应用价值。
7·The near neighbor pair query of the datasets in the network has important application in geographical information systems, query in the network and spatial database.
网络环境下的数据集中的近邻对查询在地理信息系统、网络查询和空间数据库等领域有着重要的应用。
8·Application software like geographical information systems, water network analysis, customer information systems, and billing systems is integrated with the solution.
地理信息系统、供水网络分析、顾客信息系统以及票据系统等应用软件也整合到了这个解决方案中。
9·They include paper maps, electronic maps, stereoscopic maps and the basic geographical information used in various geographical information systems and all kinds of sketch maps.
包括纸质地图、电子地图、立体地图、用于各种地理信息系统的基础地理信息和各种示意图。
10·Geographical information systems development and optimize the structure of spatial data closely, raster and vector data efficient conversion of data between the GIS is one of the key technologies.
地理信息系统开发和优化的空间数据结构紧密，光栅和矢量数据之间的地理信息系统数据的有效转换的关键技术之一。