English translation for "back up system"

备用系统
后备系统
后援系统

Similar Words：

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