The water distribution device is an important part of the Passive Containment Cooling System (PCCS), which is a key to carry out the function of the PCCS.

非能动安全壳冷却系统(PCCS)水分配装置是PCCS的重要组成部分，也是系统功能能否实现的关键。

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But a bigger blast could have compromised the containment chamber, too-the quake, in a way, to the cooling system's waterless tsunami.

但是，更大的爆炸可能毁掉控制室，在某种程度上，地震和海啸让冷却系统失灵了。

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The nuclear fuel rods in reactors one, two and three melted down due to a failure of the cooling systems, causing damage to their containment structures.

一号、二号和三号反应堆中的核燃料棒因冷却系统失灵而熔毁，导致其围护结构遭受破坏。

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As many as 15 percent of the 5, 000 previously approved welds in the reactor's auxiliary plumbing, containment dome and spent-fuel cooling systems were X-rayed and found to be defective due to air pockets, poor soldiering and heat damage.

CENTERFORSECURITYPOLICY: A Chernobyl reminder just off our shores