Tìm kiếm
Radiotelegraph
01
the use of radio to send telegraphic messages (usually by Morse code)
02
telegraphy that uses transmission by radio rather than by wire
Ví dụ
Từ Gần
Tìm kiếm
the use of radio to send telegraphic messages (usually by Morse code)
telegraphy that uses transmission by radio rather than by wire