“grades of radiological accident”的概念、定义、翻译、参考文献-科学参考

单词	grades of radiological accident
释义	grades of radiological accident Encyclopedia 工学辐射事故分级释 grades of radiological accident辐射事故分级根据辐射事故的性质、严重程度、可控性和影响范围等因素，从重到轻将辐射事故分为特别重大辐射事故、重大辐射事故、较大辐射事故和一般辐射事故4个等级。
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