以前粗针活检报告为DCIS，核级别2级。
该方法满足了核级钠对碳分析所要求的技术指标。
This method has met the technical requirements for carbon analysis in nuclear grade sodium.
目的：探讨在核舰船核事故应急体系中把海上应急状态划分为第四级（类）的可行性。
Results: A profile was made pertaining to maritime emergency status in case of nuclear accidents .
日本的核安全机构估计第四级在福岛事故。
Japan's nuclear safety agency has estimated the accident at Fukushima at level four.
日本的核安全机构估计第四级在福岛事故。
Japan's nuclear safety agency has estimated the accident at Fukushima at level four.
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