nondegenerate electron beam parametric amplifier

例句：

1. 1. The nondegenerate electronbeam is crucial for the operation of theparametric amplifier.
   非退化电子束对于参数放大器的运行至关重要。
2. 2. Thenondegenerate electron beam has been usedin various applications, such as medical imagingand particle accelerators.
   非退化电子束已被用于各种应用，如医学成像和粒子加速器。
3. 3. Thenondegenerate electron beamcan be generated by using alaser to excite the atoms inthe sample.
   非退化电子束可以通过使用激光激发样品中的原子来产生。