英语单词“trunk exchange”的翻译、意思、用法、释义-英汉词典

单词	trunk exchange
释义	trunk exchange1.■【电信学】长途交换局,长途电话局[亦作 tandem switching system, toll switching system]
随便看	reversibility principle reversible reversible booster reversible cell reversible change reversible chemical reaction reversible colloid reversible cycle reversible electrode reversible engine reversible heat engine reversible motor reversible path reversible-pitch propeller reversible process reversible reaction reversible sentence reversible steering gear reversible transducer reversible transit circle reversing current reversing gear reversing key reversing lamp reversing layer