English translation for "back up safety device"

备用安全装置

Similar Words：

"back up roll" English translation, "back up roll arbor" English translation, "back up roll bearing" English translation, "back up roll extractor" English translation, "back up roll sleeve" English translation, "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