Raman spectrum

例句：

1. 1. The Raman spectrum of the sample is shown in the figure.
   图中展示了样品的拉曼光谱。
2. 2. This technique can be used to study the molecular structure of organic compounds.
   这种方法可以用来研究有机化合物的分子结构。
3. 3. The Raman spectrum of the material was analyzed to determine its composition.
   对材料的拉曼光谱进行了分析，以确定其组成。