high-velocity electron

例句：

1. 1.The high-velocity electron beam is used to irradiate the sample surface.
   高速电子束用于照射样品表面。
2. 2.In this experiment, we will use a high-velocity electron microscope to observe the structure of the sample.
   在这个实验中，我们将使用一台高速电子显微镜来观察样品的结构。
3. 3. The high-velocity electron microscope has been widely used in various fields of science and technology.
   高速电子显微镜在科学和技术的各个领域都有广泛的应用。