Three weeks ago we wrote about Firefox's plans to build the command-line-type Ubiquity system into the address bar.

三个星期前我们曾报道过Firefox计划把Ubiquity系统植入地址栏。

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Each operating-system process is allocated its own virtual address space — a set of virtual-memory pages that it can read from and write to. Each page can be in one of three states.

每个操作系统进程占用自己的虚拟地址空间，即一组可以读写的虚拟内存页。

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