又名空间地理信息系统，与空间位置有关的领域都是G IS的重要应用领域。
GIS (Geographic Information System) is an area that deals with all domains related to spatial property.
近年来，地理信息系统（GIS）是储存和处理与地理空间分布有关信息的集合。
Recently, geographical information system (GIS) is the combination of savior and operation and information regarding distribution of geographical space.
空间数据模型是地理信息系统设计的核心和基础。
Spatial data model is the core and base of three dimensional geographic information system design.
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