All partitions are aware of the entire physical memory space.

所有的分区都共同使用整个物理内存空间。

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With a VM system, you have two primary areas that store information about the active applications and the data it USES — the physical random access memory (RAM) and space allocated on hard drives.

使用VM系统，您有两个主要区域来存储有关活动应用程序及其使用的数据的信息——物理随机访问存储器(RAM)和硬盘驱动器上分配的空间。

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Some only use swap space when the physical memory has already been used.

有些变体仅在已经使用完物理内存时才使用交换空间。

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