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The top documents tagged [d2o circulation system]
238 U (4.47 10 9 years) 226 Ra (1600 years) 222 Rn (3.82 days) 218 Po (3.10 mins) 214 Pb (26.8 mins) 214 Bi (19.9 mins) 210 Tl (1.30 mins) 214 Po (164
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238 U (4.47 10 9 years)
34 views