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单词
radiothorium
释义
ra·di·o·tho·ri·um
AHD
[rā'dē-ō-thôrʹē-əm, -thōrʹ-]
D.J.
[ˌreɪdiːəʊˈθɔːriːəm, -ˈθəʊr-]
K.K.
[ˌredioˈθɔriəm, -ˈθor-]
n.
(名词)
A radioactive isotope of thorium with mass number 228.
射钍:钍的放射性同位,质量数为228
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更新时间:2025/8/5 22:09:54