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neeldumisjooned (tumedad jooned) Päikese pideva kiirgusspektri taustal
Fraunhoferi joon . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kool_KV/Fraunhoferi%20joon/1/est (07.07.2026)
