系统: system实用: practical; pragmatic; functi ...设备: equipment; device; facility; ...实用设备: utility device系统实用程序: system utility program; system-utility programs; systemutilityprogram实用设备程序: utility facilities program操作系统实用技术: practical technology of unix operating system系统实用程序和维护: sum公用设备系统: utility system实用设计: utility design成套实用程序 成套应用设备 成套用具: kitutility系统实施: system implementation; systems implementation系统实体: system entity系统实现: system implementation系统实现化: system realizationunix系统实验室: unix system laboratories系统实施成本: system operating costs系统实现语言: system implementation language系统实验室的: tuxedo unix system laboratories unix; tuxedo,unix system laboratories unix液压系统实例: chapter examples of hydraulic systems应用系统实体: ase application system entity备用设备: alternate equipment; alternate facility; backup device; backup facility; emergence set; emergency apparatus; emergency equipment; emergency unit; off premise; off-premise; off-stream unit; reserve equipment; spare apparatus; spare equipment; spare unit; spareequipment; stand by equipment; stand by facilities; stand by facility; stand by plant; stand-by plant; standby equipment不可用设备: device unavailable测试用设备: test equipments常用设备: common equipment; commonequipment