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 theoretical models for investigating the fusion mechanism of heavy nucleus collisions and calculating the formation cross sections of superheavy nuclei have been introduced.

介绍并讨论了研究超重核合成的主要理论模型以及近年来在研究重核熔合机制和超重核合成理论模型方面的进展。

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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