Compared with grid and R-tree, the index has slightly space costs but most higher index performance.
与网格索引和R树索引相比，该索引以略大的空间开销换取了更高的查找性能。
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。
In the study of GIS, there are three models: Monitor and Discover Service (MDS), the Relational Grid Monitoring Architecture (R-GMA) and RGIS.
在对网格信息服务的研究中涌现出了很多模型，本文主要介绍了三个模型：MDS、RGIS和R - GMA。
The company's Solar Trees(R) provide shade for vehicles, while simultaneously allowing companies and organizations to offset some of its energy usage through the grid-connected solar system.
该公司的太阳能树既为车辆提供遮荫也允许企事业，并网太阳能系统的能源使用所发电力。
The company's Solar Trees(R) provide shade for vehicles, while simultaneously allowing companies and organizations to offset some of its energy usage through the grid-connected solar system.
该公司的太阳能树既为车辆提供遮荫也允许企事业，并网太阳能系统的能源使用所发电力。
应用推荐