The optical band gap increases from 3.21 eV to 3.25 eV as increasing dopant concentration from 0.01% up to 1%.是什么意思_The optical band gap increases from 3.21 eV to 3.25 eV as increasing dopant concentration from 0.01% up to 1%.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句