electron pendulum oscillation
electron period
electron plasma
electron pole
electron population
electron primary photoelectric current
electron-ray indicator tube
electron ray tube
electron recording (ER) tube
electron scanning
electron scanning microscope
electron scattering
electron screening
electron sharing
electron sheath
electron shell
electron spin resonance
electron spin resonance spectroscopy
electron stream transmission efficiency
electron switch = electronic switch
electron synchrotron
electron telescope
electron theory
electron trajectory equation
electron transit angle
electron transit time error
electron transition
electron trap
electron tube
electron tube instrument