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单词 photoionization
释义

WordReference Random House Unabridged Dictionary of American English © 2024
pho•to•i•o•ni•za•tion  (fō′tō ī′ə nə zāshən),USA pronunciation n. [Physics.]
  1. Physicsthe phenomenon in which the absorption of electromagnetic radiation by an atom in a gas induces the atom to emit a bound electron and thereby become ionized.
  • photo- + ionization 1910–15

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