According to the structure of instrument, the influence of the slit width on spectral line is discussed, the relative measurement error of instrument is also analyzed.
根据仪器结构讨论了狭缝对谱线的影响，给出了狭缝宽度和谱线宽度的对应关系，并对仪器谱面上的相对测量误差进行了分析。
The influence of spectral slit width was studied.
考察了光谱狭缝宽度的影响。
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