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ultravalgus lainepikkusega 400–320 nm, peamine osa Päikeselt saabuvast UV-A-st jõuab maapinnani
ультрафиолет А . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kool_KV/%D1%83%D0%BB%D1%8C%D1%82%D1%80%D0%B0%D1%84%D0%B8%D0%BE%D0%BB%D0%B5%D1%82%20%D0%90/1/rus (07.10.2026)