英语词汇“trunk-line exchange”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	trunk-line exchange
释义	trunk-line exchange 〖信〗长途电话局
随便看	start protein start publication time start pulse start pulse signal start pulsing signal start pump start push button start-push button start-quad cable start question and answer start quickly start point start-point start point correction start point of wave start-points start polarity start polarity pulse start position start power startrac star track startracker star tracker startrackers