microbeam X-ray analyzer

例句：

1. 1.The microbe beam is used to detect the presence of bacteria in food samples.
   微束用于检测食品样品中的细菌存在。
2. 2. The beam was focused onto a small spot on the screen.
   光束聚焦在屏幕上的一个小点上。
3. 3.The beam emitted from the laser pointer illuminated the room.
   激光笔发出的光束照亮了房间。