Spectroscopy of rare earth ions including the 4f 4f transitions, 4f 5d transitions, 4f 6s transitions, host absorption and charge transfer band in the energy range higher than 50000 cm -1 was reported.是什么意思_Spectroscopy of rare earth ions including the 4f 4f transitions, 4f 5d transitions, 4f 6s transitions, host absorption and charge transfer band in the energy range higher than 50000 cm -1 was reported.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句