radiotelegraphy
無線電報
Ra·di·o·te·leg·ra·phy n. Telegraphy using the radiant energy of radio waves; wireless telegraphy; -- the term adopted for use by the Radiotelegraphic Convention of 1912.
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radiotelegraphy
n 1: telegraphy that uses transmission by radio rather than by
wire [syn: radiotelegraph, wireless telegraphy]
2: the use of radio to send telegraphic messages (usually by
Morse code) [syn: radiotelegraph, wireless telegraph,
wireless telegraphy]