英语词汇“ringdown”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ringdown
释义	ringdown ringdown [′riŋ‚dau̇n] (communications) In telephone switching, that method of signaling an operator in which telephone ringing current is sent over the line to operate a drop or a self-locking relay and lamp.
随便看	avhr avhrc avhrr avhrr gac avhrr lac avhs avhtm avi avi- avi-4658 avia aviac aviación de chiapas sa aviación nacional de colombia aviación y comercio aviaco aviacsa aviadenovirus aviado avial aviam avian avian adeno-associated virus avian adenovirus avian adenovirus types 1-11

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