Firstly, coherent spectra of free-induction decay (FID) are studied for ZnO-Nb_2O_5-TeO_2:Er_2O_3 at room temperature using femtoseeond laser pulses with the excitation wavelength of 800 nm.是什么意思_Firstly, coherent spectra of free-induction decay (FID) are studied for ZnO-Nb_2O_5-TeO_2:Er_2O_3 at room temperature using femtoseeond laser pulses with the excitation wavelength of 800 nm.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句