An address expressed as a difference with respect to a base address. 一种地址,用绝对地址与基地址之差来表示。
If the loader can map a module at its preferred base address, the module's relocation section is never accessed by the system. 如果加载程序能够将一个模块映射到它的首选基地址中,那么系统将永远不会访问模块的移位节。