mercury vapour lamp
type: Concept
broader: metal vapour lamp
preferred label: لامپ بخار جیوه @fa

metal vapour lamp
type: Concept
alternative label: metal vapor lamps
broader: discharge lamp
narrower: mercury vapour lamp
preferred label: لامپ بخار فلز @fa

discharge lamp
type: Concept
narrower: metal vapour lamp
preferred label: لامپ تخلیه @fa