... 英国双曲线无线电近程导航系统 g-system 有线电报 line telegraphy; wire telegraphy 有线电厂 wire communication equipment factory ...
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open wire telegraphy 明线电报
Among others, he experimented with the idea of telegraphy - sending messages over a wire by electricity.
他对电报进行了实验——通过电线来传播信息。
Telegraphy in which messages are transmitted by radio instead of wire.
用无线电发送电报信息（通常使用莫尔斯电码）。
The dispatching of a signal, message, or other form of intelligence by wire, radio, telegraphy, telephony, facsimile, or other means.
传真或其它方法发送信号、报文或其它形式的消息。
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