extents
英 [ɪksˈtɛnts]
美 [ɪkˈstɛnts]
n. 程度; 限度; 大小; 面积; 范围
extent的复数
双语例句
- The second problem, of course, is that a table or an index with many highly active extents will suffer from performance degradation due to increased disk head movement and increased contention for head positioning with other objects in the database.
当然，第二个问题是，有很多高度活跃的盘区的一个表或索引将遭遇性能降低，因为磁头移动的增加和磁头与数据库中其他对象的位置争用的增加。 - Extents are a collection of eight physically contiguous pages and are used to efficiently manage the pages.
区是八个物理上连续的页的集合，用来有效地管理页。 - To quantitatively determine urban land use extents and development densities, sub-pixel impervious surface areas were mapped for this area.
为了量化城市土地利用程度和开发密度，对研究区基于子像元的非渗透表面丰度进行了分类。 - In2008, a majority of safety barrier and isolator suppliers see a declining performance to different extents.
2008年，大部分安全栅和隔离器供应商业绩出现了不同程度的下滑。 - Given this behaviour ensure that there are a reasonable number of secondary extents.
此行为可确保有合理数量的次扩展。 - This indicates that the sales table contains three extents.
这指出了销售表包含三个区段。 - There are two problems with tables that have lots of extents, or at least there used to be.
那些有很多盘区、或者至少曾经有过的表，存在两个问题。 - Subsidies are used to varying extents in both market economies and in command economies.
在市场经济和指令性经济中都存在不同范围的补贴。 - It also includes extents with multi-block and delayed block allocation for performance.
它还包括多块和延迟块分配，以提升性能。 - Three extents can be seen in this table.
可以看到，该表中有三个区段。