“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	transformation of higher order Transformation of Idlers transformation of information transformation of local coordinates transformation of orthogonal coordinates transformation of parameters transformation of pollutant transformation of pollutants transformation of pratacultural science and technology achievements transformation of programs transformation of publishing units into enterprises transformation of random variables transformation of random vectors transformation of roots transformation of scientific and technological achievements transformation of similitude transformation of snow to ice transformation of the Basis transformation of the government functions transformation of the mode of economic development transformation of the pattern of economic growth transformation operator transformation optics transformation parameter transformation problem

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