In practice, however, the physical block size information is spurious, at least for the first generation of Western Digital Advanced format drives.

但是在实践中，物理块大小信息是假的，至少对于第一代Western Digital Advanced Format驱动是这样的。

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The block storage layout maps the file blocks to physical storage blocks.

块存储布局将文件块映射到物理存储块。

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If the page is unmodified, the page replacement daemon can simply mark the physical memory block as free, and the physical memory block can then be re-used for another page.

如果该分页没有经过修改，那么分页替换守护进程可以简单地将物理内存块标记为空闲，这样一来，就可以将该物理内存块重用于另一个分页。

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It works with wifi and bluetooth, sending a signal to a physical block attached to the Lockitron owner's door.

CNN: Lockitron: The app that unlocked crowd-funding success

But cybercriminals using fast flux take advantage of the option to move the physical location of their malicious sites every few minutes, making them much harder to block or shut down.

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