Assertion: fluorescent lamp | /r/CapableOf | eliminate darkening of the envelope
Facets:
value: along with an inert gas
type: OTHER
value: by filling the lamp
type: MANNER
Source sentences:
text: The halogen lamp reduces uneven evaporation of the filament and eliminates darkening of the envelope by filling the lamp with a halogen gas at low pressure, along with an inert gas.