This occurs hundreds of billions of times every second in the core of stars like our sun, as hydrogen is converted into heavier elements like helium, releasing huge amounts of energy in the process.

在像太阳这样的恒心的内核里，这个过程每秒会发生上千亿次。在反应过程中氢原子转变成氦原子之类的更重的元素，并释放出巨大的能量。

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The results showed that the process was happened by the reasons of atmosphere energy accumulating continuously and unstable energy releasing touched off by shear line in lower level.

结果表明：这次冰雹天气过程是由于低层大气能量不断积累、低空切变线触发不稳定能量释放而产生的。

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It wasn't long ago that scientists first began to split the atom, releasing nuclear energy in a process called fission.

不久前科学家第一次开始分割原子，释放原子能，这个过程叫裂变。

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