本文提出了两种空间数据共享服务模式：物理数据中心模式与逻辑数据中心模式。
This paper provides two patterns of spatial data sharing service, one is physical data center, and the other is logistic data center.
本文提出了两种空间数据共享服务模式：物理数据中心模式与逻辑数据中心模式。
This paper provides two patterns of spatial data sharing service, one is physical data center, and the other is logistic data center.
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