radiotelegraph distress frequency meaning in English
无线电报遇险频率
Related Words
- radiotelegraph
- radiotelegraph operator
- radiotelegraph autoalarm
- radiotelegraph communication
- radiotelegraph procedure
- radiotelegraph circuit
- radiotelegraph certificate
- radiotelegraph watch
- radiotelegraph room
- radiotelegraph system
- radiotelegraph communication
- radiotelegraph coverage
- radiotelegraph distress signal
- radiotelegraph emission