radiotelegraphy
🇬🇧/ˈreɪdɪəʊtəˈleɡrəfi/ 🇺🇸/ˌreɪdioʊtəˈleɡrəfi/radiotelegraphy, radio communication by means of Morse Code or other coded signals.
noun [专属名词] 无线电报
The words of radiotelegraphy and electromagnetic wave first appeared in Shiwubao;《 时务报》最早出现“无线电报”以及“电浪”（电磁波）一词；
