在空间数据库中，对采用r树类型索引存储的数据集给出了三个查询处理算法。
For data sets indexed by R-trees in spatial databases, three algorithms are presented for answering this kind of query.
在空间数据库中，对采用r树类型索引存储的数据集给出了三个查询处理算法。
For data sets indexed by R-trees in spatial databases, three algorithms are presented for answering this kind of query.
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