“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	fundamental law of radiation fundamental laws of traditional logic fundamental legal principles of emergency management fundamental lemma fundamental length fundamental limit theorem fundamental line fundamental local theorem fundamental locus fundamental manifold fundamental matrix fundamental matrix of solutions fundamental measure theory fundamental metric tensor fundamental modality fundamental mode fundamental mode cavity fundamental model fundamental modular form fundamental modular function fundamental neighborhood fundamental neighborhood system fundamental net fundamental niche fundamental number

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