heteronuclear double resonance

例句：

1. 1. The techniqueis used to study the molecular structure of materials with different nuclei.
   这种技术用于研究具有不同核的材料的分子结构。
2. 2.In heteronuclear double resonance, two nuclei are excited at the same time, allowing for more detailed analysis of the molecular interactions.
   在异核双共振中，两个核同时被激发，允许更详细地分析分子相互作用。
3. 3. The application of heteronuclear double resonance has greatly improved our understanding of complex organic molecules.
   异核双共振的应用极大地提高了我们对复杂有机分子的理解。