course beacon
短语词组
- course indicating beacon 航線指示信標
- course radio beacon 航曏無線電指曏標
- four -course radio beacon 四航曏無線電信標
- course marker radio beacon 航路指點標
- two -course beacon 雙曏信標
- microwave course beacon 微波導標
- ship microwave course beacon receiver 船舶微波航道指曏標接收機
- beacon course [航][水運]無線電信標航曏;標程 返回 course beacon