spectral line broadening

例句：

1. 1. The spectrum of the light from the star is being observed to determine its chemical composition.
   正在观察来自恒星的光的光谱，以确定其化学成分。
2. 2.The study of the spectral lines in the spectrum of a star can provide valuable insights into its internal structure.
   研究恒星光谱中的谱线可以提供对其内部结构的宝贵见解。
3. 3. The spectral line broadening technique is used to analyze the absorption and emission spectra of gases.
   光谱线展宽技术被用来分析气体的吸收和发射光谱。