triatomic excimer

例句：

1. 1.The molecule is made up of three atoms.
   这个分子由三个原子组成。
2. 2.The triatomic excimer is a rare and fascinating substance.
   三原子激发态是一种罕见而迷人的物质。
3. 3. The discovery of the triatomic excimer has revolutionized our understanding of chemical reactions.
   发现三原子激发态已经彻底改变了我们对化学反应的理解。