英语词汇extent map怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
Automatic allocation of secondary partition header pages for extending the extent map.
用于扩展区段映射的二级分区头文件页的自动分配。
2
The Informix 11.70 introduces extent map overflow pages so the maximum number of extents is high (32,767); however, using extent map overflow pages reduces efficiency.
Informix 11.70 引入了区段溢出页，因此区段的最大数量值很高（32,767）；然而，采用区段映射溢出页会导致效率降低。
3
But this is the first map to address the thickness of the ice as well as its extent.
但是这次是第一幅既有范围，又有厚度的地图。

单词	extent map
释义	extent map 简明释义范围图网络释义 1 ?区地图这个特性减少了管理RDBM实例中区地图(extent map)的SGA需求。 2 ?范围图 ... 延伸区，范围 extent 范围图 extent map 范围数 extent number ... 双语例句 1 Automatic allocation of secondary partition header pages for extending the extent map. 用于扩展区段映射的二级分区头文件页的自动分配。 2 The Informix 11.70 introduces extent map overflow pages so the maximum number of extents is high (32,767); however, using extent map overflow pages reduces efficiency. Informix 11.70 引入了区段溢出页，因此区段的最大数量值很高（32,767）；然而，采用区段映射溢出页会导致效率降低。 3 But this is the first map to address the thickness of the ice as well as its extent. 但是这次是第一幅既有范围，又有厚度的地图。
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