“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	height of an algebraic point height of an algebraic variety height of an element height of an elliptic curve height of an ideal height of a pyramid height of a rectangle height of a triangle height of disappearance height of median energy，HOME height of water avoidance height plane height scale height system Heihe Aihui Exhibition Hall of History Heihe Daxiagu Heihe Educated Youth Museum Heihe Museum Heihe Shi Hei He Water Diversion Project Heihe Water Transfer Project Heihuijiang River Heihu Quan He II Heiji Monogatari

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