telegraphy that uses transmission by radio rather than by wire
同义词：radiotelegraph??/??wireless telegraphy
the use of radio to send telegraphic messages (usually by Morse code)
同义词：radiotelegraph??/??wireless telegraph??/??wireless telegraphy
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。