This is a spent nuclear fuel pool.

这是一个乏燃料冷却水池。

Spent nuclear fuel pools are constantly cycling out water in order to keep it at a cool enough temperature.

乏燃料冷却水池中的水会不断循环，以此来使水温保持在较低水平。

Although they're protecting something incredibly dangerous, spent nuclear fuel pools are quite serene and kind of boring.

尽管乏燃料冷却水池中保护着一些极为危险的东西，但水池中却十分平静，甚至还有一点无聊。

Although that sounds like fun, it wouldn't happen if you were to fall into a spent nuclear fuel pool.

上述情形尽管听起来有趣，但当你真掉进了乏燃料池中，这些并不会发生。

If splashing around in a spent nuclear fuel pool is a little too boring for you, how about swimming on one of Saturn's moons?

如果对你来说在乏燃料池中玩水太无聊的话，那么在土星的某颗卫星上游泳怎么样？

If splashing around in a spent nuclear fuel pool is too boring for you, how about swimming on one of Saturn's moons?

如果在废核燃料池中嬉戏对你来说太无聊了，那么在土星的一颗卫星上游泳怎么样？

Both the primary and backup power sources failed so the pumps and cooling systems for the spent fuel pools couldn't run leaving the water to heat up.

主电源和备用电源都发生故障，因此乏燃料池的泵和冷却系统无法运行，导致水升温。