“external radiation protection”的概念、定义、翻译、参考文献-科学参考

单词	external radiation protection
释义	external radiation protection Encyclopedia 医学辐射防护三原则释 external radiation protection外照射防护尽量减少或避免体外放射源发射的电离辐射人体的照射，使所受照射不超过国家规定的剂量限值的措施。
随便看	fire resistance level fire resistance level of museum fire resistance of wood fire resistance rating fire-resistant fire resistant glass fire-resistant grade of building fire retardancy fire retardant coating fire-retardant coating fire-retardant polymeric materials fire-retardant treated wood fire retardant vent cap fire retarding products identification system fire risk fire risk assessment fire risk classification method fire risk evaluation and cost assessment model fire risk index method fire safety fire safety assessment of museum fire safety at construction site fire safety engineering fire safety evaluation system fire safety inspection system for public places

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