“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	discharge lamp discharge liquid for injection discharge measurement discharge measurement instruments discharge of double negative discharge of hydraulic turbine discharge orifices discharge permit system for point source sewage discharge permit system for stationary sources discharge plasma in liquid discharge printing JiuJing discharge printing Taoist Canon discharge printing The Annotation of Classics discharger discharge rate discharge repetition rate discharge reporting and registration system discharge resistance discharge synthesis discharge time constant discharge time delay discharge tube discharge value discharging capability calculation of hydro-structures discharging method

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