There was a real possibility of a leak in the No 4 reactor container, which houses the nuclear fuel rods, according to Murray Jennex, a professor at San Diego State University in California.

圣地牙哥州立大学副教授杰尼克斯说，燃料棒外面的4号反应堆的外壳相当有可能出现裂缝。

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He said the plant operator confirmed there was no damage to the steel container housing the reactor.

他说，电站的操纵职员确认，保护反应堆的钢制防护罩没有损坏。

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Reactor through the container structure design and parameter configuration, realize the process requirements of the heating, cooling, evaporation and low speed mixing function.

反应釜通过对容器的结构设计与参数配置，实现工艺要求的加热、蒸发、冷却及低高速的混配功能。

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But the Chernobyl cleanup plans were also simpler, experts say: Build a thick concrete container around the shattered reactor and move people away permanently.

WSJ: Japan to Take 40 Years to Dismantle Fukushima Nuclear Plant