“primary standard of exposure”的概念、定义、翻译、参考文献-科学参考

单词	primary standard of exposure
释义	primary standard of exposure Encyclopedia 工学照射量基准释 primary standard of exposure照射量基准复现X射线（5～300千伏）和γ射线（137Cs, 60Co）照射量量值，用于标准和工作级计量器具的量值传递。
随便看	soil suitability soil sulfur soil surface complex soil surfaced area soil survey soil swelling Soil Taxonomy soil taxonomy soil temperature soil temperature at tiller node soil temperature gradient soil temperature observation of rice paddy soil temperature regimes soil testing soil testing and fertilizer recommendation soil texture soil thermoluminescence survey soil thermometer soil thixotropy soil three phases soil tillage Soil & Tillage Research soil tilth soil total nitrogen analysis soil trace elements

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