英语词汇“down quark”是什么意思，“down quark”的读音、用法及例句翻译-烛光网

词汇	down quark
释义	down quarkn.（名词）abbr. d【缩写】 A quark with a charge of -⅓, a mass about 607 times that of the electron, and a downward spin. It is a component of protons and neutrons. See table at subatomic particle 下夸克：电荷为-⅓的夸克，质量是电子的607倍，有向下的旋转动量。下夸克是质子和中子的组成部分参见 subatomic particle
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