The unit cell parameters of Fe-B substructure are a = 7.08 A , cFe= 3.91 A, and the space group is P/4_2/mcm.是什么意思_The unit cell parameters of Fe-B substructure are a = 7.08 A , cFe= 3.91 A, and the space group is P/4_2/mcm.在线翻译_英语_读音_用法_例句