| 单词 | positron |
| 释义 | posi·tronBrE /ˈpɒzɪtrɒn/ NAmE /ˈpɑːzɪtrɑːn/ noun (physics物理) a particle in an atom which has the same mass as an electronand an equal but positive charge 正电子；阳电子antiparticle , atom , electron , ion , neutron , nucleus , particle , positron , proton , valency |
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