英语词汇“telegraph signal”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	telegraph signal
释义	telegraph signal 基本例句电报信号 He was already an expert on the telegraph before he came up with a gadget that sent telegraph signals between unmanned stations.他发明的这种装置，用于在无人看管的两站之间传输电报信号，在此项发明前，爱迪生就已经是位电报专家了。
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