If the cores cannot be cooled sufficiently, a total meltdown could ensue, exposing the fuel rods to the outside air and further spreading radiation.
如果内核不能得到充分冷却，恐其随后将完全熔毁，从而使能源棒暴露在空气中导致辐射进一步扩散。
2
The fuel in unit 4's cooling pond is thought to have been removed from the reactor sometime in November.Over the past four months, it will have cooled down substantially, making exposure less likely.
The fuel in unit 4's cooling pond is thought to have been removed from the reactor sometime in November. Over the past four months, it will have cooled down substantially, making exposure less likely.