“R树索引”的概念、定义、翻译、参考文献-科学参考

单词	R树索引
释义	R树索引 Encyclopedia 工学R树索引释 R-tree indexR树索引将B树向多维空间扩展的索引方法。它采用空间聚集的方式将相邻的空间实体划分在一起，组成更高一级的结点，直到所有实体组成一个根结点。是一种高效的空间索引。又称平衡树。
随便看	sample coefficient of variation sample coins of the Qing dynasty sample collection sample complexity sample confirming sample continuity sample correlation coefficient sample correlation matrix sample covariance sample covariance function sample covariance matrix sample data sampled data sampled-data computer sampled-data control sampled-data control systems sampled-data control theory sampled-data system sample deciles sample design sample detection limit sample deviation sample dimension sample dispersion sample dissect

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