These graphite blocks are in fact the fuel assemblies.

这些石墨块事实上是燃料组件。

youdao

The issue basically is if it goes into the core it could obviously block some fuel assemblies.

这个问题是，如果它进入到核心，它可能会堵塞到一些燃料组件。

youdao

Put several fuel assemblies into the core of a nuclear reactor, and the amount of energy released gets even higher.

把几个燃料组件放到核反应堆的中心，释放的能量会更高。

youdao

Once the MOX fuel assemblies have been irradiated in commercial power reactors, the plutonium can no longer be readily used for nuclear weapons.

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Reactor operators typically discharge about one-third of the fuel assemblies every 18 months to 2 years and place this spent fuel in a pool to cool .

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Restarting cooling to the spent fuel pool at reactor 4 had been of particular urgency for Tepco as it had the highest number of fuel assemblies stored there, Kyodo news agency reported.

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