单词 | up quark |
释义 | up quark (extremely rare) n WORD FAMILY up quark USAGE EXAMPLESThe details have to do with the way the up quark, a component of the proton, couples with the top quark in the new theory. Scientific American(Jul 23, 2011) n a stable quark with an electric charge of +2/3 and a mass 607 times that of an electron Hyper quark (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3 |
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