Cathode ray tube (CRT): An electronic vacuum tube containing a geated filament as cathode, which generates electons, an anode and multiple grids for accelerating the electrons to a flat screen at the end of the tube.

• 阴极射线管:是电子真空管，它有着炽热灯丝，作为阴极，发出电子，并由阳极和多层栅极把电子加速射向管末端萤幕上；