radiotelegraphy

基本解释

Transmission of messages by radiotelegraphy.
用无线电传真传送信息
Of or relating to radio or communication by radiotelegraphy or radiotelephony.
无线的，无线电报的属于或关于通过无线电报或无线电话联系或无线电传送的
The existing words, ""Cargo Ship Safety Radiotelegraphy Certificates or Cargo Ship Safety Radiotelephony Certificates"" are replaced by ""or Cargo Ship Safety Radio Certificates"".
将现有文字“，货船无线电报安全证书或货船无线电话安全证书”改为“或货船无线电安全证书”。
Cargo ship safety radiotelegraphy approval record
货船无线电报安全认可记录
Cargo ship safety radiotelegraphy certificate
货船无线电报安全证书

a type of telegraphy in which messages (usually in Morse code) are transmitted by radio waves its use is no longer widespread as it has been superseded by satellite technology (Also called wireless telegraphy)