1·Nuclear fission releases tremendous amounts of energy.
核裂变释放出巨大的能量。
—— 《新英汉大辞典》
2·Nuclear reactors work in a similar way to other power plants, but instead of using coal or gas to generate heat, they use nuclear fission reactions.
核反应堆的工作原理和其他的发电站很相似，不过它们并不是使用煤炭或煤气来生成热量，而是利用核裂变反应。
3·Some byproducts of the nuclear fission are themselves radioactive.
有些核裂变产生的副产品自身具有放射性。
4·The only difference is where the heat comes from — to get it, you can light coal on fire, or you can create a controlled nuclear fission reaction.
区别仅在于热气从哪里来，你可以在火上燃煤，或者你可以创造一个可控制的核裂变反应。
5·Plutonium is produced during nuclear fission, so is present in all reactor cores - the longer the fuel has been there, the more plutonium will be present, up to about 1%.
钚是在核裂变过程中产生的，所以在所有的反应堆中都存在---燃料在反应堆内烧的时间越长，产生的钚就越多，最高可以到1%。