... long distance symmetric cable ==> 长途对称电缆 long distance telegram ==> 长途电报 long distance telephone ==> 长途电话 ...
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今天，世界上大约有一半的长途电话，电报及电视通讯都是由卫星转播的。
Today about half the world's long-distance telephone, telegraph, and television traffic is relayed by satellite.
豪称，由塞缪尔·莫尔斯研发的电报促进了一些商品的长途交易，比如在南方各州生产的棉花可以运销到北方及欧洲。
Howe says the telegraph, developed by Samuel Morse, promoted long-distance trade in commodities such as cotton, which was grown in the southern states and shipped to the north and Europe.
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