“QR-tree index”的概念、定义、翻译、参考文献-科学参考

单词	QR-tree index
释义	QR-tree index Encyclopedia 工学QR树索引释 QR-tree indexQR-树索引结合四叉树和R-树而提出的一种空间索引方法。
随便看	Li Junweng Poetic Talks Li Junxian Li Junyu Poems Li Kai Li Kaiwen Li Kaixian Li kaixian Li Kaixian’s family opera troupe Li Kan Li Kang Likasi like dissolves like like-dissolves-like Li Keji likelihood likelihood equation likelihood estimating function likelihood estimator likelihood function likelihood ratio likelihood ratio principle likelihood ratio test likelyhood ratio likely possible event likeness

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。