自传
发表于 2025-3-30 09:21:42
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闪光你我
发表于 2025-3-30 12:55:39
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尊重
发表于 2025-3-30 19:56:59
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使闭塞
发表于 2025-3-31 00:33:45
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Generator
发表于 2025-3-31 02:31:51
Esther Geva,Dana Shafmane 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%
liaison
发表于 2025-3-31 05:07:15
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