Distributed geographic information is analyzed and data model of geographic spatial information is proposed.
论文对分布式地理信息进行分析，提出了地理空间信息的数据模型。
Spatial data is distributed essentially. There are much more researches in integrated spatial data model but fewer in distributed spatial data.
空间数据本质上是分布的，目前对集中式空间数据模型进行了大量的研究，而在分布式空间数据的研究方面尚处于起步阶段。
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