“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	learning organization theory learning oriented software design learning party learning platform learning problem learning rate learning readiness learning right Learning School learning school learning science research abroad learning science research in China learning sciences learning set learning situation learning society learning space learning strategy learning style learning support services system learning system learning task learning theory learning theory of social constructivism Learning: The Treasure Within

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。