短語詞組短語unmanned air vehicle navigation 無人機導航station and air celestial navigation 海上和空中的天體導航RAN Regional Air Navigation 區(qū)域空中導航tactical air navigation system [軍]戰(zhàn)術空中導航系統(tǒng)tactical air navigation tacan 塔康導航系統(tǒng)air navigation beacon 航空信標d to air navigation 無線電空中導航regional air navigation 區(qū)域領航air navigation installation 航空導航裝置 返回 air navigation