beacon course
短語詞組
- beacon n course 無線電導標的航線
- course beacon [航][水運]航曏信標;指曏標;航曏浮標;[航][水運]航線標志
- 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
- 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 返回 beacon course