A - Fe 2 O 3 ( haematite ) was one of the first compounds to be studied by neutron diffraction.A-Fe2O3(赤铁矿 ) 是中子衍射最先研究的化合物之一....

haematite的音标：haematite的英式发音音标为：['hi:mətaɪt]haematite的美式发音音标为：[]...

n.赤铁矿...