短語詞組短語celestial gravitation navigation 天體引力導(dǎo)航方法radio celestial navigation 射電天文導(dǎo)航autonomous celestial navigation 自主天文導(dǎo)航celestial navigation trainer 天文導(dǎo)航教練器celestial navigation instrument 天文航海儀表automatic celestial navigation [航]自動(dòng)天文導(dǎo)航radio celestial navigation system 射電天文導(dǎo)航系統(tǒng);無線電天文導(dǎo)航系統(tǒng)celestial navigation periscope 天文導(dǎo)航潛望鏡optical celestial navigation 光學(xué)天文導(dǎo)航 返回 celestial navigation