每日背誦第一期31

所屬教程:每日背誦第一期

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Thomas Edison's first invention was the automatic telegraph repeater. He was already an expert on the telegraph before he came up with a gadget that sent telegraph signals between unmanned stations. Thanks to Edison, people were then able to send several telegraph messages simultaneously.

電報自動轉(zhuǎn)發(fā)器是托馬斯·愛迪生的第一個發(fā)明。他發(fā)明的這種裝置，用于在無人看管的兩站之間傳輸電報信號，在此項發(fā)明前，愛迪生就已經(jīng)是位電報專家了。幸虧有愛迪生，我們才能在同一時間傳送好幾封電報訊息。

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