The long afterglow luminescent material of Sr_2MgSi_2O_7 was prepared by sintering at high temperature under the deoxidization atmosphere.是什么意思_The long afterglow luminescent material of Sr_2MgSi_2O_7 was prepared by sintering at high temperature under the deoxidization atmosphere.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句