An atom contains a tiny heavy nucleus.

一个原子含有一个微小而重的核。

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The calculation result shows that for the scattering on light nucleus, there is no second diffractive maximum, but on heavy nucleus, there is a second diffractive peak.

计算结果表明，J粒子在轻核上的散射，没有出现第二个衍射峰；而J粒子在重核上的散射出现第二个衍射峰。

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The nucleus of Can Curreu is the 500-year-old whitewashed farmhouse - framed by heavy bows of blooming pink bougainvillea - that has been in the Mari family for generations.

BBC: The three colours of Ibiza