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radium Astresses
chem. радий A
радиоакт. радий A (RaA, 218Ро, RaA, 218Po)
radium E
chem. радий Е
радиоакт. радий E (RaE, 210Bi, RaE, 210Bi)
radium E'
радиоакт. радий E' (RaE', 206Tl, RaE', 206T1)
radium A: 16 phrases in 3 subjects
Medical appliances4
Technology2
Радиография10