... emergency coolant recirculation 应急冷却剂再循环 emergency coolant system 应急冷却系统 emergency cooling 紧急堆芯冷却 ...
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应急冷却系统必须能够正常工作数周。
在那次事故中，有一半核反应堆芯在事故发生后的两小时内便融化了，直到工作人员将误关的应急冷却系统开关重新打开，反应堆芯才停止了融化。
There, half the reactor core melted in the first two hours of the accident. The melting stopped when an operator turned on emergency cooling, which had mistakenly been turned off.
可是，反应堆失去了包括应急柴油发电机在内的所有电力供应，冷却系统无法工作。
But cooling was unavailable as the reactors lost all electric power, including from backup emergency diesel generators.
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