navigational aid
短語詞組
- navigational visual aid 目視助航設施
- navigational lighting aid 助航燈光
- shipborne navigational aid 船載導航設備
- NAVAID Navigational Aid 導航設施
- Air navigational aid 助航設施
- nab navigational aid to bombing 轟炸導航設備
- AIRNAVAI D Air Navigational Aid 導航輔助設備 返回 navigational aid