城市空间数据基础设施是数字城市基础层的核心。
Urban spatial data infrastructure is the core of the basic layer of digital city.
本文论述了启动“城市空间数据基础设施”建设计划的必要性，并就有关问题提出了一些初步看法。
The article expounds the necessity of initiating "urban spatial statistics infrastructure" and raises some tentative opinions on the essential problems concerned.
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