两个指针相比较，结果取决于所指对象的地址的相对位置。
When two Pointers are compared, the result depends on the relative locations in the address space of the objects pointed to.
虽然系统为单独进程选择虚拟地址，它维护各个段的相对位置。
Though the system chooses virtual addresses for individual processes, it maintains the segments' relative positions.
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