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BNC: 17697 COCA: 9947

photon

noun
/ˈfəʊtɒn/
/ˈfəʊtɑːn/
(physics物理)
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  1. a unit of electromagnetic energy光子Topics Physics and chemistryc2
    Word Originearly 20th cent.: from Greek phōs, phōt- ‘light’, on the pattern of electron.
BNC: 17697 COCA: 9947
BNC: 17697 COCA: 9947
BNC: 17697 COCA: 9947

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