multiple electron gun zone refining

例句：

1. 1. The process of multiple electron beam zone refining is crucial for the quality of semiconductor wafers.
   多电子束区域精炼过程对于半导体晶片的质量至关重要。
2. 2. In the field of electronics, multiple electron beam zone refining has been widely used to improve the performance of integrated circuits.
   在电子领域，多电子束区域精炼被广泛使用来提高集成电路的性能。
3. 3. The development of multi-electron beam zone refining technology has greatly enhanced the precision and efficiencyof semiconductor manufacturing processes.
   多电子束区域精炼技术的发展大大提高了半导体制造工艺的精度和效率。