Screen protection against radiation overdose of radioactive level gauge in chemical plant and the relevant national standards are introduced.
针对化工生产装置常用的放射性液位计和国家标准，介绍射线剂量超标的屏蔽防护方法。
This paper summarizes the quality assurance work of external exposure measurement for national survey of environmental natural radioactive level.
本文总结了全国环境天然放射性水平调查外照射测量的质量保证工作。
This paper summarizes the quality assurance work of external exposure measurement for national survey of environmental natural radioactive level.
本文总结了全国环境天然放射性水平调查外照射测量的质量保证工作。
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