空间数据网格通过元数据目录和数据代理，将网格环境下的目录服务器的元数据目录集成到一起，为客户端提供空间数据的统一的逻辑视图，实现目录服务器的协同；

The metadata catalog and data broker of Spatial Data Grid integrate the metadata catalog of grid to offer an uniform logical view for the client, Thus realize the cooperation of catalog server.

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空间数据网格来源于数据网格，本文对它的关键技术-元数据目录、数据代理和网格空间数据库进行了探讨研究。

Spatial data Grid derived from data Grid. In the dissertation, the key technology of Spatial data Grid, including metadata catalog, data broker and Grid Spatial Database are studied.

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空间数据网格来源于数据网格，本文对它的关键技术-元数据目录、数据代理和网格空间数据库进行了探讨研究。

Spatial data Grid derived from data Grid. In the dissertation, the key technology of Spatial data Grid, including metadata catalog, data broker and Grid Spatial Database are studied.

youdao