Terms for subject Aviation containing back-up

English	Chinese
back up	〔客〕备用的
back up	后备
back-up facility	备用设备
back-up facility	备用设施
back-up interceptor control	备用拦截控制系统 (美国地面防空系统的组成部分)
back-up register	备用寄存器
back-up trim switch	备份调整开关
back-up yaw damper unit	〔客〕备用偏航阻尼器
emergency back up facility	应急备用设施