up quark
短语（粒子）上夸克
发音
其它
词形变化
up quarks
复数
up quarks
释义与例句
n.
-
1.
A quark having a fractional electric charge of +2/3 and a mass of about 1.5 to 4 MeV.
物理 -
2.
A quark having a fractional electric charge of +2/3 and a mass of about 1.5 to 4 MeV. Symbol: u
Symbol: u
物理