...，多层索引的管理比单 纯的主索引要复杂，所以是否采用或是使用 多少层的索引，必须视实际的情况权衡 多层索引(Multilevel index) 多层索引的例子 假设1个资料方块可存2个资料纪录 1个资料方块可存4 个索引纪录 1个资料方块存8个索引纪录 存取资料方 块之数目 ...
基于20个网页-相关网页
Dynamic-Multilevel Index 动态多级索引
multilevel index technology 多级索引
multilevel appraisal index system 多级评价指标体系
According to the characteristics of spatial index of grids and R-tree, a hybrid structure of spatial multilevel index is presented based on grid and R-tree.
结合网格索引和R树索引的特点，提出了一种基于网格与R树的多级混合索引。
A rectangular region of geography is roughly partitioned in several times to multilevel sub-regions, in which spatial index of R-tree has been constructed.
该方案首先将矩形地理空间进行租网格划分建立多级网格索引，然后针对每个小网格建立基于R树的空间索引。
Advanced multilevel deep linking system which not only lets you have unlimited number of pages, but also enables search engines to easily index the pages.
先进的多级深连接系统，不但让你有无限数量的页面，又可以使搜索引擎容易指数的页。
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