radiotelegraphy
短语词组
- Radiotelegraphy sets 成套無線電報機
- RadioTelegraphy RTG 無線電報
- multiplex radiotelegraphy [通信]多路無線電報學
- NBDP radiotelegraphy 窄帶印字電報
- radiotelegraphy technology spread 無線電報技術傳播
- aircraft radiotelegraphy station 機載無線電報台
- station aircraft radiotelegraphy 機載無線電報台
- cargo shisafety radiotelegraphy certificate 貨船安全無線電報証書 返回 radiotelegraphy