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单词 psi particle
释义

WordReference Random House Unabridged Dictionary of American English © 2024
psi par′ticle,  (sī, psī),USA pronunciation [Physics.]
  1. Physicsany of a family of mesons consisting of a charmed quark and a charmed antiquark.
  2. Physicsan early name for the J/psi particle.
  • 1970–75

Collins Concise English Dictionary © HarperCollins Publishers::
psi particle n
  1. See J/psi particle
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