Spatial index is a key issue in massive spatial data processing.
海量空间数据的处理需要通过空间索引来提高效率。
In recent years, many organizations successively have established respective GIS system, gathered and saved the massive spatial data.
近年来，许多机构先后建立了各自的GIS系统，采集和存储了大量的空间数据。
Spatial Database Engine; Spatial Database Management System; Seamless Integration of Multisource Spatial Data; Adjusting and Optimizing; Massive Spatial Data.
空间数据库引擎；空间数据库管理系统；多源空间数据无缝集成；调整和优化；海量空间数据。
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