I want you to notice that this spectrum make it interrupted by dark line called spectral lines.

我想让你们注意到这个打断了光谱的黑线，这就是光谱线。

youdao

I want you to notice that this spectrum make it interrupted by dark line called spectral lines.

我想让你们注意到这个打断了光谱的黑线，这就是光谱线。

youdao