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分析了影响光谱仪器波长准确度的各种因素，导出了光谱仪器波长校准公式，可以用Ｈｇ灯三条谱线精确而简捷校准光谱仪器波长
Analyzed the various factors that affect the accuracy of the wavelength of the spectrometer and derived the wavelength calibration formula of the spectrometer, which can accurately and simply calibrate the wavelength of the spectrometer with three lines of Hg lamp