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Uran-Radium-Zerfallsreihe f
gen.	uranium sequence; uranium series; uranium-radium series
chem.	uranium decay series
nucl.phys., радиоакт.	uranium radioactive series; 4n + 2 series; uranium-radium radioactive series; uranium radioactive family; radioactive family of uranium; 4n + 2 family; uranium-radium radioactive family; radioactive family of uranium-radium
phys.	uranium-radium family