[----]

Jyutping ji6 joeng5 faa3 zik6
Pinyin èr yǎng huà xì

Definitions (Wiktionary)
  1. noun, Hong-Kong, Taiwan
    silicon dioxide
    (syn.) 二氧化硅

[----]

Jyutping ji6 joeng5 faa3 zik6
Pinyin èr yǎng huà xī

Definitions (Wiktionary)
  1. noun, Hong-Kong, Taiwan
    silicon dioxide
    (syn.) 二氧化硅