noun 下载 🔗分享 反粒子，逆粒子 A subatomic particle corresponding to another particle with the same mass, spin and mean lifetime but with charge, parity, strangeness and other quantum numbers flipped in sign; a particle that has a reversed world line to another. Examples : "When a high-energy collision creates an electron, it almost always creates its corresponding antiparticle, a positron, at the same time. " 当高能碰撞产生一个电子时，几乎总是会同时产生它的对应反粒子，也就是正电子。 physics science energy 与AI对话词汇游戏阅读练习
