radiotelegraph的中文翻譯是什麼意思
radiotelegraph
US/reɪdi'oʊtelɪɡrɑf/
UK/reɪdi':əʊtelɪɡrɑ:f/
n. 無線電報機； 無線電報術
v. 用無線電報發（資訊等），（給…）發無線電報
radiotelegraph的英文釋義
Noun
1. telegraphy that uses transmission by radio rather than by wire
2. the use of radio to send telegraphic messages (usually by Morse code)