• 14温度是30亿第一原子核形成了。

    14 seconds later, the temperature became 3 billion degrees, forming the first deuterium atom.

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  • 原子原子核质子一个中子组成,视为单位正电荷亚原子

    Deuteron: the nucleus of a deuterium atom consisting of a proton and a neutron regarded as a subatomic particle with unit positive charge.

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  • 同位素原子核内有质子一个中子,其原子重量为2。

    An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014.

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  • 同位素原子核内有质子一个中子,其原子重量为2。

    An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014.

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