up quark

名词 n.
中文释义

英文释义

名词 n.
  1. A quark having a fractional electric charge of +2/3 and a mass of about 1.5 to 4 MeV. particle
  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 particle

词形变化

up quarks plural
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