The page tables are usually not pageable.

网页表格通常不分页。

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This would not be a problem in most circumstances, except that the operating system must make sure that there is always some pageable memory available to other applications.

如果操作系统需要给其它应用程序分配一些可分页的物理内存，而又没有足够的内存时就会发生问题。

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