Iran is the only country so far to have built a uranium-enrichment plant before having even a single working reactor that would need its uranium as fuel for the reactor core.

伊朗是迄今为止唯一的、在尚未拥有哪怕一座需要以本国铀元素充当堆芯燃料的已运作反应堆之前却已建成铀浓缩工厂的国家。

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At that point, the fuel at the core of the reactors would have dropped in temperature and no longer be capable of boiling the surrounding water.

到那时，反应堆堆芯的燃料温度会下降，且也不会导致周围水温升高。

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By contrast, reactors have strong containment vessels that stand a better chance of bottling up radiation from a meltdown of the fuel in the reactor core.

相反，反应堆拥有非常坚固的围阻体，可以承受由于反应堆堆芯融化而产生的大剂量辐射。

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All of the rods from the fuel core were put into the spent fuel pool above the reactor at that time.

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The proceeds of those sales provide fuel for its core strategy making it all the more important to have a CEO overseeing that strategy.

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It says that the simulations focused on how shock waves from conventional explosives could compress the spherical fuel at the core of a nuclear device, which starts the chain reaction that ends in an explosion.

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