spatial knowledge base system model 空间知识库系统模型
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 Research of GeoScience Spatial Data Model can offer the base of comprehension for GeoScience Data.
地学（空间）数据模型的研究能为地质科学数据的共同理解提供基础。
Highly application of GIS to urban traffic pollution management has been developed, which consisted of proscenium-GIS system, back stage-motor vehicle emission model and spatial data base.
开发了高层应用城市交通污染管理信息系统，由前台g IS系统、后台机动车排放模型、空间数据库三大部分构成。
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