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单词 astatine
释义 as·ta·tine
\ˈastəˌtēn, -_tə̇n\ noun
(-s)
Etymology: Greek astatos unsteady, unstable + English -ine
: a radioactive element belonging to the halogens discovered by bombarding bismuth with helium nuclei and also formed by radioactive decay — symbol At; see element table
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