核反应堆活性区需要水来冷却，而海啸切断了冷却系统的电力供应，各种应急措施相继失效，迫使操作人员引海水灌入反应堆以降低其温度。
The nuclear cores need water to cool them down, and the tsunami swamped Fukushima and initially cut off electricity powering the cooling systems.
核反应堆活性区需要水来冷却，而海啸切断了冷却系统的电力供应，各种应急措施相继失效，迫使操作人员引海水灌入反应堆以降低其温度。
The nuclear cores need water to cool them down, and the tsunami swamped Fukushima and initially cut off electricity powering the cooling systems.
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