A uranium nucleus has many, many particles inside it.

铀核内有很多很多的粒子。

Nuclear power relies on the fission of uranium nuclei and a controlled chain reaction that reproduces this splitting in many more nuclei.

核能依赖于铀的核裂变和一个可控的复制性核裂变的链式反应。

Since then, the ability to mine great amounts of energy from uranium nuclei has led some to bill nuclear power as a plentiful utopian source of electricity.

从那时起，从铀原子核中 开采大量能量的能力使核电被一些人列为一种理想，丰富的电力来源。

A fraction of the newfound energy powers the fast-moving neutrons, and if some of them strike uranium nuclei, fission results in a second larger generation of neutrons.

新发现的能量中的一小部分 为速移的中子提供了能量，如果它们中的一些撞到了铀原子核，那么裂变将产生第二代更多的中子。