EB

例句：

1. 1.The electron beam is used to scan the surface of the material for defects.
   电子束用于扫描材料表面以查找缺陷。
2. 2.The electron beam was used to create a pattern on the screen.
   电子束被用来在屏幕上创建图案。
3. 3. The electron beam was used to melt the metal and shape it into a new part.
   电子束被用来熔化金属并将其成型为新的部件。