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单词 θ79584
释义
the world > matter > physics > atomic nucleus > radioactive isotope > radioactive nuclide > [noun] > in thorium series (1)
mesothorium1907

Either of two radioactive nuclides in the thorium series: mesothorium I (symbol MsThI), the isotope of radium with mass number 228, produced by the…

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更新时间:2026/7/17 7:09:17