radiotelegraphy

柯林斯词典

radiotelegraphy /ˌreɪdɪəʊtɪˈlɛɡrəfɪ/

• 1. N a type of telegraphy in which messages (usually in Morse code) are transmitted by radio waves; its use is no longer widespread as it has been superseded by satellite technology 无线电报术(现已被卫星技术所取代) (Also called wireless telegraphy)

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