low energy electron diffraction

例句：

1. 1. The technique of low-energy electron diffraction is crucial for the analysis of materials.
   低能电子衍射技术对于材料分析至关重要。
2. 2. In this study, we used low-energy electron diffraction to investigate the crystal structure of the sample.
   在这项研究中，我们使用低能电子衍射来研究样品的晶体结构。
3. 3. The low-energy electron diffraction pattern revealed a complex lattice structure in the sample.
   低能电子衍射图案揭示了样品中复杂的晶格结构。