electron optical lens电子透镜
magnetic electron lens磁电子透镜
electrostatic electron lens静电型电子透镜;静电电子透镜;翻译
magnetostatic electron lens静磁电子透镜
electric electron lens电子透镜
electron lens electron电子透镜
immersion battery electron lens浸没电子透镜
second electron lens第二电子透镜
first electron lens第一电子透镜;阴极透镜
N（名词） a system, such as an arrangement of electrodes or magnets, that produces a field for focusing a beam of electrons 电子透镜