“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	hop limit Hopmann crater hopper weigher hopping conductance hopping conduction hopping conductivity hopping energy hopping probability hopping transport hopscotch method hop sky-wave Hoqin Barag Qi Hor Hora Horace Horace Greeley Horace Lamb Horace Mann Horace Walpole Horacio Quiroga Horai Fossa Horatio Alger,Jr. Horatio Nelson Horatio Nelson Lay hordein

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