Read Edit View history 乙种粒子 yǐzhǒnglìzǐ beta particle Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 乙种粒子/乙種粒子 · yǐzhǒnglìzǐ · beta particle 2026/03/04 乙种粒子 / 乙種粒子 yǐzhǒnglìzǐ beta particle A beta particle, which is a high-speed electron or positron emitted by a radioactive nucleus during decay. 放射性核衰变过程中会释放出乙种粒子。 created sense Mar 4, 2026, 02:25 AM