英语词汇“back-up safety device”的翻译、意思、用法、释义-英汉汉英词典

单词	back-up safety device
释义	back-up safety device后备安全设备back-up safety device後備安全設備電機工程back-up safety device後備安全設備電力工程
随便看	throw the book throw…the book throw the bull throw the cap over the mill throw the cap over the windmill throw the cards throw the discus throw the eye at throw the first stone throw the great cast throw the handkerchief to throw the hatchet throw the helve after the hatchet throw the hooks into throw the house out of the windows throw the little finger throw the log throw them in a pile throw the reins to throw the reins to ... throw together throw tongue throw ... to the dogs throw to the dogs throw to the lions throw to the wind