And many of these states depend on coal, the dirtiest commonly-used fuel.

在这些州之中又有不少对煤炭——污染最大但使用普遍的燃料——难以割舍。

youdao

The used fuel is extremely radioactive and ignites spontaneously at high temperatures.

（反应堆）使用的燃料具有强放射性并且在高温下自发燃烧。

youdao

The storage pools, which contain used fuel rods, also need a constant supply of water.

用来存放核废料的储存池也需要立刻灌水冷却。

youdao

Enriched uranium can be used as fuel for nuclear energy as Iran says or it can be used for nuclear bombs.

VOA: special.2009.09.26

Even coal, the fuel people used to heat their homes, cost twice as much.

VOA: special.2009.01.01

She says a contribution of more than three million Euros from Italy will be used to provide winter kits, including heating fuel to vulnerable families.

VOA: standard.2009.09.13

One proposed solution for long-term storage of used fuel is Yucca Mountain in Nevada.

CNN: Nuclear disasters: Is the fear realistic?

The same is true of reprocessing: you can get plutonium out of used fuel.

FORBES: Stuxnet and the Iranian Nuclear Program

But that doesn't address the problem of the need to cool the used fuel for five years before moving it anywhere else.

CNN: Nuclear disasters: Is the fear realistic?