extents
英 [ɪksˈtɛnts]
美 [ɪkˈstɛnts]
n. 程度; 限度; 大小; 面积; 范围
extent的复数
双语例句
- When using linear logging on the other hand log file extents will be continually allocated as required.
另一方面，使用线性日志记录时，将根据需要继续分配日志文件扩展。 - This indicates that the sales table contains three extents.
这指出了销售表包含三个区段。 - The extents of the viewport can be anything you want them to be.
viewport的扩展可以是您希望的任何东西。 - 10 primary extents and10 secondary extents for the log specified with the-lp10 and-ls10 flags.
使用-lp10和-ls10标志为日志指定10个主扩展和10个次扩展。 - Three extents can be seen in this table.
可以看到，该表中有三个区段。 - 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。 - The following illustration shows the sequence of pages used by the database engine to allocate and manage extents.
下图显示了数据库引擎用来分配和管理区的页顺序。 - 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。 - Ext4 replaces ext3's mechanism with extents to improve allocation and support a more efficient storage structure.
ext4使用区段取代ext3的机制，从而改善了空间的分配，并且支持更加高效的存储结构。 - For maximum efficiency, frequently accessed tables should have as few extents as possible.
为达到效率最大化，频繁访问的表区段应当越少越好。