乙种粒子 yǐzhǒnglìzǐ beta particle Definitions Defs Origin Strokes Stroke Words Sentences Sents 乙种粒子 乙種粒子 yǐzhǒnglìzǐ beta particle beta particle; a high-speed electron or positron emitted by a radioactive nucleus during radioactive decay
乙种粒子 乙種粒子 yǐzhǒnglìzǐ beta particle beta particle; a high-speed electron or positron emitted by a radioactive nucleus during radioactive decay
