Chinese translation for "back up system"

备用系统
后备系统
后援系统

Similar Words：

"back up safety functions" Chinese translation, "back up sand" Chinese translation, "back up shaft" Chinese translation, "back up shot" Chinese translation, "back up slowly to support" Chinese translation, "back up system library" Chinese translation, "back up tape" Chinese translation, "back up value" Chinese translation, "back up wall" Chinese translation, "back up washer" Chinese translation