molecular beam spectrometer

例句：

1. 1. The molecularbeam spectrometer was used to analyzethe chemical composition of the sample.
   分子束质谱仪被用来分析样品的化学成分。
2. 2.The molecular beam spectrometer is apowerful tool for studying the properties of materialsat the atomic level.
   分子束质谱仪是研究材料原子级特性的强大工具。
3. 3. The molecular beam spectrometer hasbeen widely used in various fields, suchas environmental science and medicine.
   分子束质谱仪在环境科学和医学等领域得到了广泛应用。