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keemilise elemendi mittestabiilse isotoobi radioaktiivsel lagunemisel eralduv alfaosakeste (heeliumi tuumade) voog
alpha ray . Meteoroloogia ja klimatoloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtkl/alpha%20ray/1/eng (19.06.2026)