doubly excited state

例句：

1. 1. Thedoubly excited state of the electrons in a metal is responsible for itselectrical conductivity.
   金属中电子的双重激发态是其导电性的原因。
2. 2. In quantum mechanics, the doubly excited staterefers to an energy level that has beenpopulated by two or more particles.
   在量子力学中，双重激发态是指一个能量水平已经被两个或更多的粒子占据。
3. 3.The doubly excited state of theatoms in the sample is due to theinteraction between them.
   样品中原子的双重激发态是由于它们之间的相互作用造成的。