radio telegraphy 中文意思是什麼
radio telegraphy
解釋
無線電報學- radio : n. 1. 無線電訊[電報，電話]；無線電，射電。2. 無線電廣播；無線電（廣播）臺。3. 收音機。vt. ,vi. 用無線電傳送[廣播]；（向…）作無線電廣播[傳送]；用X射線拍照；用鐳醫治。
- telegraphy : n 電信技術[工程]；電報學；電報。 electric wave telegraphy＝Hertzian [wireless] telegraphy 無線電...
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Safety radio - telegraphy certificate
無線電報設備安全證書 -
Wireless telegraphy, the phonograph and the radio are based on this law
無線電報，留聲機和無線電廣播都基於這個法則。 -
Voice radio, as opposed to wireless telegraphy, was first successfully tried in 1906, but the first broadcasting stations were opened in 1920, after the war.
與無線電報相對的無線電廣播在一九六年就成功地進行了最初的試驗，但第一批廣播電臺是在戰后的一九二年開辦的。 -
In 1915, marine weather forecasts for ships were broadcast using radio telegraphy for the first time
至一九一五年，海洋天氣預報首次透過無線電報向船舶廣播。
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