段页式虚拟存储管理，为一个进程的内存申请（多少个段，每个段多大）分配内存，当一个进程（完成）结束时回收内存；对一个给定逻辑地址，判断其是否缺段、缺页，若不缺段、不缺页，则映射出其物理地址；若缺段则进行缺段中断处理，若缺页则进行缺页中断处理。-Section paged virtual memory management, a process memory application (how many segments, each much) to allocate memory, when a process (completed) at the end of the recovery of memory　For a given logical address, determine whether the lack of segments, missing pages, missing segment if no missing pages, then map out their physical address　segment will be missing if the missing segment interrupt processing is performed if the missing pages page fault handling.