backup n.倒车,后退,后援,支持,阻...backup system 后备系统...backup facility 备份设备,备用设备...backup copy 备份件...daily backup volume 日备份卷...always create backup copy 总是生成备份文件...backup program 备份程序...total backup 整盘备份整盘备份...library backup 库后援,库后备...differential backup 差异备份差异备份...full backup 全部备份完全备份...device backup 设备后援,设备备份...companion store backup 伴随存储后备...incremental backup 增量备份增量备份...downcomer backup 降液管液柱高度...
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