How many fuel rods are in the pond now?

现在那里有多少燃料棒？

While powering a nuclear reactor, these fuel rods become very, very hot.

在为核反应堆提供动力时，这些燃料棒会变得非常烫手。

Remember, these fuel rods are incredibly hot.

谨记这些燃料棒温度极高。

The fuel rods present a high risk because their storage pools are uncovered.

这些核燃料棒构成了很高的风险，因为它们的储存池没有任何遮盖。

Tepco said it is removing seven unspent nuclear fuel rods from the reactor's pool.

Tepco表示其正在从反应堆中取出7根未使用过的核燃料棒。

This is an active nuclear reactor, and down there are uranium fuel rods undergoing fission reactions.

这是一个活跃的核反应堆，下面是正在进行裂变反应的铀燃料棒。

Uranium fuel rods contain tiny pellets of specially prepared uranium encased in a sheath of zirconium alloy.

铀燃料棒含有若干微型特制铀芯块，这些芯块被包裹在锆合金护套里。

If another major disaster were to cause a loss of water, the fuel rods could melt, releasing radiation.

如果另一场重大灾难导致水源流失，那么这些核燃料棒就会熔化，从而释放出辐射。

Then, workers will remove the fuel rods one by one, they will use a crane suspended above the building.

工人们将一个一个地将燃料棒挪走，他们使用悬吊在建筑物上的起重机来做这项工作。

And here's what would happen if you fell into a pool full of nuclear fuel rods.

我们来看看，如果你掉进一个有核燃料棒的水池中会发生什么。

Not only does the water spend several decades cooling the fuel rods, but it also affects their radiation.

不仅是因为在之后的几十年里水会冷却这些燃料棒，还因为水会影响它们的辐射。

After it's spent 3 to 6 years inside of a nuclear reactor, a fuel rod is no longer efficient.

当燃料棒在核反应堆中用了 3 到 6 年之后便会失效。

This large pool of water is meant to cool spent fuel rods after they come out of a nuclear reactor.

这一大池子水原本是用来冷却用过的燃料棒，而燃料棒则是从核反应堆中取出的。

More than 1500 fuel rods sit in a damaged storage pool 30 meters above ground inside the reactor 4 building.

在4号反应堆建筑中高于地面30米的受损存储池中竖立着1500多个燃料棒。

Here's an innovation that just might have prevented the 2011 nuclear power plant explosions in Japan: safer fuel rods.

更安全的燃料棒。

As long as you don't swim several meters underwater to touch the fuel rods, you'd be completely fine.

只要你不游到水下数米处去摸燃料棒你都会好好的。

The fuel rods will remain radioactive enough to emit a lethal dose for tens or hundreds of thousands of years past their removal.

燃料棒在被移除后的数万年至数十万年间，仍将释放出足以致命的剂量。

This time the cooling ponds for spent but still highly radioactive fuel rods were affected by a power failure and it took engineers some 30 hours to fix them.

这次出现的停电事故导致冷却池受到影响，该冷却池专门处理废弃反辐射性仍很强的燃料棒，工程师花了30个小时才处理好这个问题。

The fuel rods must not touch each other or break. Nuclear experts warn that any accidents could cause an explosion many times worse than the one in March 2011.

燃料棒是不能相互接触或破裂的，核专家警告说，任何事故都可能导致比2011年3月更严重几倍的爆炸。

They're made of materials that readily absorb neutrons and they're inserted between the fuel rods of uranium to slow the neutrons down and therefore slow the reaction.

它们由容易吸收中子的材料制成，它们入铀的燃料棒之间以减慢中子的速度，从而减缓反应。