down quark

名词 n.
中文释义

英文释义

名词 n.
  1. A quark having a fractional electric charge of -1/3 and a mass of about 4 to 8 MeV. particle
  2. A quark having a fractional electric charge of -1/3 and a mass of about 4 to 8 MeV. Symbol: d; Symbol: d particle

词形变化

down quarks plural
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