On other platforms, you need to use the operating system imposed virtual address space size.

在其他平台上，需要使用操作系统决定的虚拟地址空间大小。

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The name of the file is removed from the file system, and its storage space is recovered by the operating system when the program using it closes the file.

这将从文件系统中删除该文件的名称，当使用该文件的程序关闭它时，操作系统可以重新获得其存储空间。

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Releasing space allows the underlying operating system to cut down on swap space requirements and reuse memory mapping tables.

释放空间使底层操作系统减小对交换空间的许求并且重用内存映射表。

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Microsoft needs to gain market share in the virtualize operating system space.

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