Core damage states include no core damage, fuel clad failure, fuel overheat and fuel melt.

堆芯损伤状态包括堆芯无损伤、燃料元件包壳破损、燃料过热和燃料熔化等四种。

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Nuclear reactor core damage is a possible severe accident during nuclear reactor operation.

反应堆堆芯损坏是反应堆运行中可能出现的严重事故。

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Given the core damage in the reactors, the plant operators may have decided that the reactors were a higher priority than the pools.

反应器核心部分的损害情况反映出当时操作员更注重反应器，而不是废料池。

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New rules imposed by the NRC require plant operators to install or improve venting systems to limit core damage in a serious accident and set up sophisticated equipment to monitor water levels in pools of spent nuclear fuel.

NPR: Nuclear Chief: US Plants Safer After Japan Crisis

By the time he was brought back from exile to his home (which his sister said is 'like heaven'), the damage to his core personality was done.

FORBES: Malthus And Scrooge

Ms. Giffords's immediate responsiveness to commands, such as squeezing a doctor's hand, suggests that she wasn't in a coma and that her brain stem and the brain's core structures had relatively little damage.

WSJ: Rep. Gabrielle Giffords's Brain at Risk Despite Quick Aid After Shooting