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Jyutping aa3 ji5 faat3 lap1 zi2
Pinyin ā ěr fā lì zǐ

Definitions (Wiktionary)
  1. noun
    Synonym of 阿爾法粒子/阿尔法粒子 (ā'ěrfǎ lìzǐ, “alpha particle”).
    (syn.) 阿尔法粒子, 阿爾法粒子