CeO 2) 0.9- x (GdO 1.5 ) x (Sm 2O 3) 0.1 powders were synthesized by employing both sol-gel and low temperature combustion methods.是什么意思_CeO 2) 0.9- x (GdO 1.5 ) x (Sm 2O 3) 0.1 powders were synthesized by employing both sol-gel and low temperature combustion methods.在线翻译_英语_读音_用法_例句