在可见光范围给出了所观察到的各条谱线的发射截面及相应上能级的激发截面。

The emission cross sections of the observed lines and the excitation cross sections of the corresponding states are obtained in the visible region.

youdao

在镍基合金可见光谱计算机模拟基础上，研究利用镍元素及成分元素特征谱线进行基体鉴别和成分元素分析的方法。

The method was developed for the matrix determination and the component analysis by the character line in Ni-based alloy based on digital simulation.

youdao

And I also want to point out, it's guaranteed pretty much you may or may not be able to see, sometimes it's hard to see that one that's getting near the UV end of our visible spectrum. So we won't worry if we can't see that.

我要指出的是，我可以保证你们,但你们可能会看不到，有时候很难看到,这个可见光谱边缘接近紫外光地方的这根谱线,所以看不到也不用担心。

麻省理工公开课 - 化学原理课程节选