A fiber Bragg grating demodulator and a high-speed data acquisition card were used to measure the Bragg wavelength and fluorescent lifetime of an Erbium doped fiber grating.是什么意思_A fiber Bragg grating demodulator and a high-speed data acquisition card were used to measure the Bragg wavelength and fluorescent lifetime of an Erbium doped fiber grating.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句