“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	News Express news facts news film news function news gathering News-gathering techniques News Half an Hour New Shepard sub-orbital manned space vehicle New Siberian Islands news information News informer news infringement News Inspection Standard news inspection system in Enemy-occupied Area news inspection system in the Period of Beiyang Warlords news inspection system of Nanjing Provisional Government news inspection system of the Nanjing Government news institutions News International PLC news justice Newsletter of Chinese Museums News line Newsline News literacy news magazine

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。