It was a round about the size of a crown piece 这是一枚银币大小的圆纸片。
2.
The higgs is the still missing crowning piece of the so - called standard model ? the theoretical framework that describes subatomic particles and their interactions 在所谓标准模型,也就是描述基本粒子与其交互作用的理论架构中,希格斯粒子是最后一个还没找到的关键元素;按道理,希格斯粒子能赋予其他粒子质量。