electron ray

例句：

1. 1. The electron ray was used toscan the area for any hidden dangers.
   电子射线被用来扫描区域以查找任何隐藏的危险。
2. 2. The electron ray wasused to create a protective shield around thespacecraft.
   电子射线被用来在宇宙飞船周围创建一个保护屏障。
3. 3. Theelectron ray was usedto detect and analyze the chemicalcomposition of the sample.
   电子射线被用来检测和分析样本的化学成分。