lens spectrometer

例句：

1. 1. This lens spectrometer is used to analyze the chemical composition of samples.
   这台透镜光谱仪用于分析样品的化学成分。
2. 2.The scientist used the lens spectrometer to study the absorption spectra of different compounds.
   科学家使用透镜光谱仪研究不同化合物的吸收光谱。
3. 3. The lens spectrometer was used to detect the presence of certain elements in the sample.
   透镜光谱仪被用来检测样本中某些元素的出现。