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杏彩彩票注册邀请码ontains a table of the half lives of 65 radionuclides and a database of the isotopic compositions, atomic weights and relative atomic masses of the elements.

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杏彩彩票注册邀请码reated 杏彩彩票注册邀请码uly 15, 2009, 杏彩彩票注册邀请码pdated 杏彩彩票注册邀请码ovember 25, 2019
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