“manual exchange”的概念、定义、翻译、参考文献-科学参考

单词	manual exchange
释义	manual exchange [`man·yǝ·wǝl iks`chānj] ^{COMMUNICATIONS} Any exchange where calls are completed by an operator.
随便看	lizard lizard-hipped dinosaur Liénard-Wiechert potentials L joint Ljungström heater Ljungström steam turbine LK virus LL llama Llandellian Llandoverian llano Llanvirnian llebetjado LLL circuit Lloyd's mirror interference L/M LM lm LMC L meson lm-hr lm-sec lm/w LMXRB

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