radio aid
短语词组
- radio approach aid 無線電進場輔助
- radio fixing aid [通信]無線電定位輔助設備
- radio audition aid system 無線助聽系統
- ground radio navigation aid 地麪無線電導航設備
- ship radio navigation aid 船載無線電導航設備
- radio navigation aid 無線電導航輔助設備
- radio hearing aid system 無線助聽系統
- radio homing aid [航]無線電歸航輔助設備
- radio landing aid 無線電著陸輔助設備 返回 radio aid