| 释义 |
DEFINITIVE EXAMPLES 权威例句〔electron lens〕Any of various devices that use an electric or a magnetic field to focus a beam of electrons.电子透镜：通过一个电场或一个磁场来使一束电子会聚的一种装置美国传统〔electron optics〕The science of the control of electron motion by electron lenses in systems or under conditions analogous to those involving or affecting visible light.电子光学：利用电子透镜控制电子活动的科学，用于类似涉及或影响可见光的系统内或条件下美国传统 |