短語詞組短語navigational technology 航?？萍?航海技術(shù)navigational system [航][水運]無線電導(dǎo)航系統(tǒng);[航][水運]導(dǎo)航系統(tǒng)Navigational instruments 導(dǎo)航儀器;航海儀器navigational planets 航用行星;[航]導(dǎo)航行星navigational intelligence 航行情報navigational tree 導(dǎo)航樹navigational rangefinder 航用測距儀navigational data 航行資料navigational plot 導(dǎo)航標(biāo)圖navigational aid 導(dǎo)航輔助設(shè)備 返回 navigational