钚、铯以及锶本身就是有限资源，如果裂变反应堆技术先进到一定程度，它们又会成为燃料。
Plutonium, cesium and strontium are also limited resources, and if fissionreactor technology advances enough, they could become fuel sources themselves.
现在还不清楚3号反应堆发生了什么情况，3号反应堆的燃料是混合的铀和钚。
It remains unclear what is happening with the Number-3 reactor, which is fueled by a mix of uranium and plutonium.
钚和其它的放射性元素的混合物可以转变成适宜“快”反应堆使用的燃料。
This mixture of plutonium and other radioactive elements couldthen be turned into fuel suitable for use in “fast” reactors.
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