Assertion: absorption spectrum | /r/HasProperty | the opposite
Facets:
value: of bright lines at each wavelength
type: OTHER
value: exactly
type: DEGREE
value: on a dark background
type: LOCATION
Source sentences:
text: A dark-line spectrum, or absorption spectrum, is exactly the opposite — instead of bright lines at each wavelength on a dark background, an absorption spectrum has dark lines at the corresponding wavelengths on a continuous background.