短語(yǔ)詞組短語(yǔ)navigational technology 航?？萍?航海技術(shù)navigational system [航][水運(yùn)]無(wú)線電導(dǎo)航系統(tǒng);[航][水運(yùn)]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(bào)navigational tree 導(dǎo)航樹(shù)navigational rangefinder 航用測(cè)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