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a graph line representing the decrease of radioactivity with the passage of time, diagramm, mis kujutab radioaktiivsuse kahanemist aja jooksul
radioaktiivsuse kõdunemiskaar . Militerm | riigikaitseterminite andmebaas . Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mil/radioaktiivsuse%20k%C3%B5dunemiskaar/1/est (01.08.2026)