- directional radio beacon
- directional radiobeacon
- 定向无线电: directive radio; directional ...
- 信标: beacon
- 定向无线电信标台: directional radio beacon station
- 全向无线电信标: omnidirectional beacon; non-directional radio beacon; circular radio beacon; [航空] omnidirectional radio beacon (orb)
- 全向无线电信标台: rotating radiobeacon station
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