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actinium emanation
chem.
actinon
m
;
émanation d'actinium
nucl.phys., радиоакт.
actinon
m
(An, 219Rn)
радиоакт.
émanation de l'actinium
(An, 219Rn, An, 219Rn)
English thesaurus
actinium emanation
abbr.
Em219
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