英语词汇“push-button dialing”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	push-button dialing
释义	push-button dialing push-button dialing [′pu̇sh ¦bət·ən ′dī·liŋ] (electronics) Dialing a number by pushing buttons on the telephone rather than turning a circular wheel; each depressed button causes a transistor oscillator to oscillate simultaneously at two different frequencies, generating a pair of audio tones which are recognized by central-office (or PBX) switching equipment as digits of a telephone number. Also known as tone dialing; touch call.
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