Each guest operating system has its own address space that is mapped when the guest is instantiated.

每个客户操作系统都有自己的地址空间，并且是在实例化客户操作系统时映射的。

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When the ppe wants to access the mailbox, it needs to have access to the memory-mapped register space, which is normally only available to kernel space.

当PPE希望访问邮箱时，它需要能够访问内存映射的寄存器空间，后者通常只对于内核空间来说是可用的。

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With DMS tablespaces, DB2 has more control over how data pages are physically mapped in disk space groupings known as extents.

通过dms表空间，DB2更加可以控制如何将数据页面物理映射到称作区段的磁盘空间分组中。

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An infrastructure with these characteristics cannot be expected reliably to support even a modest space program let alone the ambitious one mapped out by President Bush and the National Space Council.

CENTERFORSECURITYPOLICY: The National Aerospace Plane

It has filled in the big, largely blank space that previously lay north of the well-mapped South Korea with streets, towns and landmarks.

CNN: STORY HIGHLIGHTS