cathode ray tube
preferred label: لامپ پرتوکاتدی @fa
type: Concept
related: electron gun

electron beam
preferred label: باریکه الکترون @fa
type: Concept
related: electron gun

electron tube components
preferred label: اجزای لامپ الکترونی @fa
type: Concept
narrower: electron gun

electrostatic device
preferred label: افزاره ایستابرق @fa
type: Concept
narrower: electron gun

electron gun
related: electron beam
related: cathode ray tube
broader: electrostatic device
broader: electron tube components
preferred label: تفنگ الکترونی @fa
type: Concept