翻译;UNDELETE 1995-02-10 MS_DOS provides three levels of protection against accidental file deletion-Delete Sentry,Delete Tracker and standard. Delete Sentry provides the highest level of protection Delete Sentry requires a small amount of memory and disk space.The next level of protection is Delete Tracker.which requires the same amount of memory as Delete Sentry,but minimal disk space The lowest level of protection.standard rdquires neither memory nor disk space,but still allows you to recover deleted files.provided that their location on the disk has not been taken by other files. 恢复删除 MS_DOS为偶然失误引起的文件删除提供了三级保护__Delete Sentry Delete Tracker 和标准。 Delete Sentry 提供最高一级的保护,它需要一定数量的内存和磁盘空间,次一级的保护是Delete Tracker ,它需要与Delete Sentry一样多的内存,但需要的磁盘空间少些,最后一级保护是标准,它既不需要内存也不需要磁盘空间,倘若被删文件在磁盘上的位置没有被其它文件占据,它也能让你恢复被删文件。