找到一个高效的索引结构一直是空间数据库研究的重点。
It is always the key technology of spatial DBMS to find a efficient index structure.
海量空间数据的处理需要通过空间索引来提高效率。
Spatial index is a key issue in massive spatial data processing.
传统的索引技术不能有效地索引空间数据。
Traditional technology of index can not be used efficiently in spatial index.
传统的索引技术不能有效地索引空间数据。
Traditional technology of index can not be used efficiently in spatial index.
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