astronautics航天学,宇航学;太空导航术详细»
astronautics〔名词〕航天学详细»
astronautics〔名词〕宇宙航行学详细»
astronautics〔名词〕航天学详细»
宇宙航行学〔名词〕astrogation,astronautics,astronavigation详细»
宇宙航行学astrogation;astronautics;astronavigation;cosmonautics;spationautics详细»
宇宙航行学astronautics;cosmonautics;spationautics详细»
宇宙航行学astrogation;astronavigation;cosmonautics;spationautics详细»