“radioactive reference materials”的概念、定义、翻译、参考文献-科学参考

单词	radioactive reference materials
释义	radioactive reference materials Encyclopedia 工学放射性标准物质释 radioactive reference materials放射性标准物质已确定放射性活度及相关量值，用于校准活度计量器具，进行包括放射性活度、剂量、射线能量等量值传递的放射性核素物质。是标准物质中的一类。
随便看	span in a category Spanish Spanish American Enlightenment Spanish-American War Spanish Art Spanish cinema Spanish Civil War Spanish dance Spanish economic reformation in Philippenes Spanish gardens Spanish Golden Age Spanish language Spanish literature Spanish mackerel Spanish music spanish needles Spanish Phalanx Spanish private international law Spanish Revolution（1808～1814） Spanish Socialist Workers' Party Spanish sports Spanish Steps Spanish Town Spanish Virtual Observatory spanned filter

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