arc spectrometer

例句：

1. 1. The arc spectrometer was used to analyze the chemical composition of the sample.
   光谱仪被用来分析样品的化学成分。
2. 2. The arc spectrometer was used to detect the presence of heavy metals in the soil.
   光谱仪被用来检测土壤中重金属的存在。
3. 3. The arc spectrometer was used to study the absorption and emission spectra of different materials.
   光谱仪被用来研究不同材料的吸收和发射光谱。