electron probe

例句：

1. 1.The electron probe was used to analyze the chemical composition of the sample.
   电子探针被用来分析样品的化学成分。
2. 2. The electron probe was used to map out the distribution of minerals in the earth's crust.
   电子探针被用来绘制地球地壳矿物分布图。
3. 3. The electron probe was used to study the structure and properties of materials at the atomic level.
   电子探针被用来研究材料在原子层面上的结构与性质。