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7·19%; .Nd, 5·76%; .Nd, 5·64%. The half life, .., of .Sm is long, 1·06 × 10. a, and λ = 6·54 × KT. a.. Despite this, the decay scheme is applicable to the dating of terrestrial rocks as well as stony meteorites and lunar materials. In addition, the growth of both radiogenic .Nd and .Sr together affoImmunoglobulin 发表于 2025-3-23 22:10:25
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e similar properties resembling those of aluminium. Samarium has an atomic weight of 150·35 and an atomic number of 62 with a relative density of 7·536 and a melting point of 1072° C. It has 26 isotopes of which seven are found in nature with the following abundances: .Sm, 3·1%; .Sm, 15%; .Sm, 11·3%surrogate 发表于 2025-3-24 10:24:32
Sébastien Harispe,Sylvie Ranwez,Stefan Janaqi,Jacky Montmain. C. Urey and his associates on .O/.O in the 1950s.. The approach involved recent and fossil calcium carbonate shells and was extended later into studying the atmosphere and hydrosphere where the fractionation of both oxygen and hydrogen as different isotopic molecules of water is significant. CompaRAGE 发表于 2025-3-24 12:31:51
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978-3-031-01028-6Springer Nature Switzerland AG 2015失望未来 发表于 2025-3-24 21:41:37
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Synthesis Lectures on Human Language Technologieshttp://image.papertrans.cn/s/image/864669.jpg