The Surveying and Mapping Industry, especially the Fundamental part, is the core of Spatial Data Infrastructure (SDI) in a city, and the latter places a foundation for the concept of "Digital City".
测绘产业，特别是基础测绘是城市空间基础设施的核心，而后者是“数字城市”的基础。
The Surveying and Mapping Industry, especially the Fundamental part, is the core of Spatial Data Infrastructure (SDI) in a city, and the latter places a foundation for the concept of "Digital City".
测绘产业，特别是基础测绘是城市空间基础设施的核心，而后者是“数字城市”的基础。
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