In modern nuclear reactor designs, pumps aren't necessary to move water through the core in an emergencyshutdown.
在现代的核反应器设计中，当紧急措施关闭时水泵没有必要将水通过核心抽上来。
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New “passive safety” features can shut a reactor down in an emergency without the need for human intervention.
新的“主动性安全设施”的功能在紧急情况下，无须人工干预就可以关闭反应堆。
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Other nuclear plants across the country have been shutdown for emergency safety tests over the summer, usually the time of peak energy demand in Japan due to the heat and humidity.