短語詞組短語unmanned air vehicle navigation 無人機(jī)導(dǎo)航station and air celestial navigation 海上和空中的天躰導(dǎo)航RAN Regional Air Navigation 區(qū)域空中導(dǎo)航tactical air navigation system [軍]戰(zhàn)術(shù)空中導(dǎo)航系統(tǒng)tactical air navigation tacan 塔康導(dǎo)航系統(tǒng)air navigation beacon 航空信標(biāo)d to air navigation 無線電空中導(dǎo)航regional air navigation 區(qū)域領(lǐng)航air navigation installation 航空導(dǎo)航裝置 返回 air navigation