For a particular virtual page, a page table entry will give a corresponding physical page or note that the page is not present (indicating a page fault).
对于一个特定的虚拟页，根据一条页表记录可以找到对应的物理页，或者是页无法找到的提示(说明存在一个页错误)。
From Operating System theory, OS implements a page table entry, PTE, to describe a mapping of a page in VAS to physical page.
来自操作系统的理论，操作系统引入一个页表项，PTE，描述了一个在VAS中的页到物理页的映射。
Each entry in the PTE chain USES 4 bytes to store a pointer to the page-table entry and an additional 4 bytes to store the pointer to the next entry on the chain.
pte链的每一个条目使用4个字节来存储指向页表条目的指针，用另外4个字节来存储指向链的下一个条目的指针。
However, before they can be swapped out, every single process mapping that page must be found so that the page-table entry for the page in that process can be updated.
不过，在它们可以被交换出去之前，必须找到映射那个页的每一个进程，这样那些进程中相应页的页表条目才可以被更新。
The addressed page is not present in memory, the corresponding page Table entry is null, or a violation of the paging protection mechanism has occurred.
寻址的页不在内存中，对应的页表条目是空的，或者是违背了页式管理的保护机制。
The addressed page is not present in memory, the corresponding page Table entry is null, or a violation of the paging protection mechanism has occurred.
寻址的页不在内存中，对应的页表条目是空的，或者是违背了页式管理的保护机制。
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