electron discharge tube
electron drift
electron emission constant
electron emission decay
electron emission density
electron envelope
electron evaporation
electron flow
electron geometrical optics
electron gun
electron-gun cathode
electron-hole
electron-hole collision
electron-hole pair
electron-hole pair generation
electron-hole recombination
electron illuminating system
electron image
electron image tube
electron indicator tube
electron injection current
electron lattice theory
electron microprobe (EMP)
electron microscope
electron migration
electron mobility
electron-molecule collision
electron multiplier phototube
electron-multiplier section
electron-optical aberration