Nuclear fusion is a type of reaction that turns one chemical element into another.

核聚变是种化学反应，可以将一种化学元素转化为另一种P^,xm-G&pUdtShq6X1b)。

The Sun and other stars use nuclear fusion as a form of power.

太阳和其他恒星将核聚变作为一种能源tArZSw&w*#3T@A=X|@。

In high enough temperatures, the nucleus of an atom can be separated from its electrons.

在足够高的温度下，原子核可以与电子分离R=wpdWv[XG。

The heat causes the nucleus to move very quickly.

高温使原子核快速运动H[g(P)kBm9lo!5YW!U。

When two nuclei come close enough to each other, they fuse, forming a larger nucleus.

当两个原子核靠得足够近时，它们就会融合，形成一个更大的原子核%sBhRO+4ERJkezA。

This method allows stars to convert hydrogen atoms into helium atoms, and even more complex atoms after that.

恒星可以利用这种方法将氢原子转化为氦原子，甚至更复杂的原子6qmHMv@]c&。

Nuclear fusion is a difficult process to replicate on Earth, because it requires a lot of heat and pressure.

核聚变在地球上很难实现，因为它需要极高的温度和压强)OquyS^PqzJt-g+e。

However, many research groups around the world hope to find a way to use it as an energy source.

但是，世界各地的许多研究团队都希望找到一种将其用作能源的方法tPxz=U|I6ZzhL6。