In this paper the Sm- 2+ fluorescence s pe ctra SrFCl 0.5Br 0.5:Sm- 2+ is reported.是什么意思_In this paper the Sm- 2+ fluorescence s pe ctra SrFCl 0.5Br 0.5:Sm- 2+ is reported.在线翻译_英语_读音_用法_例句