乙种粒子 Traditional 乙種粒子 yǐ zhǒng lì zǐ 🔊 beta particle (electron, esp. high speed… + Keep this word Meanings yǐ zhǒng lì zǐ 乙種粒子 beta particle (electron, esp. high speed electron emitted by radioactive nucleus) Its characters 乙yǐsecond of the ten Heavenly Stems…HSK 5种zhǒngseedHSK 3粒lìgrain; granule; pellet; particleHSK 6子zǐsonHSK 3