他们的行动也相当果断：撤离居民，并且用大量海水冷却反应堆，以遏制热度上升。
They have also been decisive; evacuating people and flooding reactors with seawater to contain the build-up of heat.
控制棒是在一个加压水冷却反应堆里使用的，用来改变能量的级别，也可以用来停止反应堆。
Control rods are used in a PWR typically to change the power level and also to shut down the reactor.
福岛核反应堆得工作人员正在用硼处理过的海水冷却过热的反应堆芯。
Workers at the Fukushima plant are pumping seawater, treated with boron, to try to cool the overheating reactor cores.
关闭核反应堆时，需要打开安全阀门释放蒸气，然后用水冷却堆心。
To shut down a reactor, safety valves are opened to release the steam and water is used to then to cool down the reactor core.
但它却是第一个采用水冷系统的反应堆。
But it is the first to be laid low by the technology's dependence on a ready supply of water for cooling.
他说，海水冷却反应堆正将1和3泵浦-这是恢复正常-进入反应器2，这仍然是不稳定的。
He said cooling seawater was being pumped into reactors 1 and 3 - which were returning to normal - and into reactor 2, which remained unstable.
他说，海水冷却反应堆正将1和3泵浦-这是恢复正常-进入反应器2，这仍然是不稳定的。
He said cooling seawater was being pumped into reactors 1 and 3 - which were returning to normal - and into reactor 2, which remained unstable.
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