radiotelegraph的中文翻译是什么意思
radiotelegraph
US/reɪdi'oʊtelɪɡrɑf/
UK/reɪdi':əʊtelɪɡrɑ:f/
n. 无线电报机； 无线电报术
v. 用无线电报发（信息等），（给…）发无线电报
radiotelegraph的英文释义
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)