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Jyutping saam1 dou6 hung1 gaan1 laap6 tai2 seon6 jing4 fong3 se6 zi6 liu4
Pinyin sān dù kōng jiān lì tǐ shùn xíng fàng shè zhì liáo

Definitions (Wiktionary)
  1. noun
    three-dimensional conformal radiotherapy; 3D-CRT