vacuum ultraviolet spectroscopy

例句：

1. 1. The newinstrument can analyze the chemical composition of materials in a vacuum ultraviolet spectrum.
   新仪器可以在真空紫外光谱中分析材料的成分。
2. 2. This technique is crucial for understanding the behavior of molecules in extreme conditions, such as in vacuum ultraviolet spectroscopy.
   这种技术对于理解分子在极端条件下的行为至关重要，比如在真空紫外光谱学中。
3. 3. The researcher used this method to study the properties of rare earth elements in vacuum ultraviolet spectroscopy.
   研究者使用这种方法研究稀有元素在真空紫外光谱学中的性质。