As a result, a theoretical model of fiber grating external cavity semiconductor lasers including the reflectivity distribution of fiber grating has been presented in this paper.是什么意思_As a result, a theoretical model of fiber grating external cavity semiconductor lasers including the reflectivity distribution of fiber grating has been presented in this paper.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句