monoenergetic electron beam

例句：

1. 1. The monoenergetic beam of light illuminated the room.
   一束单能的光照亮了房间。
2. 2.The monoenergetic electron beam was used to scan the surface for defects.
   单能电子束被用来扫描表面以查找缺陷。
3. 3. The monoenergetic beam of light was directed towards the target.
   单能光束被定向到目标上。