“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	archives appraisal working group archives appraisal work organization Archives Arrangement and Management archives arrangement scheme archives backup from different materials archives backup from different places archives box archives building fire warning archives business expenses archives cabinet archives catalog Archiveschule Marburg archives classification Archives Classification in China archives classification indexing Archives Concerning Qing Dynasty Literary Inquisitions Archives Concerning Sino-French Relations 1875～1908 Archives Concerning Sino-Japan Relations 1909-1912 Archives & Construction archives content arrangement archives depository Center Archives Dictionary archives file moved south archives flow of state owned bankrupt enterprises archives fumigation agent

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。