The multi-reactor Fukushima atomic power plant is now relying on battery power, which will only last around eight hours.
现在多反应堆福岛原子电厂靠电池发电，大概只能维持8小时左右。
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On Friday officials raised the alert level at the plant from four to five on a seven-point international scale of atomic incidents.
周五，官方将本次事件的警报级别从四级提高到五级，而核事故的国际标准仅有七级。
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The International Atomic Energy Agency (IAEA) confirmed today that elevated radiation (" dose rates up to 400 millisieverts per hour ") had been reported at the plant.