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