With the deep and wide application of GIS, it becomes more important and outstanding for the metadata of spatial data.
随着GIS应用的深入和广泛，空间数据元数据的重要性愈加明显和突出。
Outline the primary capacity - building needs for strengthening the application of metadata standards for geo-spatial data.
请说明加强在地理空间数据方面运用元数据标准方面的主要能力建设需要。
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.
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。
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