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。
This model can be used as the base to draw up the different design sequences.
这个模式可以作为编排各种不同类型设计程序的基础。
This model can be used as the base to draw up the different design sequences.
这个模式可以作为编排各种不同类型设计程序的基础。
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