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Jyutping gwong1 hok6
Pinyin guāng xué

Definitions (CC-CEDICT)
  1. optics
  2. optical (instrument)
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. noun
    optics
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    五轴光学防手震
    五軸光學防手震
    • 5 stops of optical stabilization
  2. Cantonese
    光学滑鼠
    光學滑鼠
    gwong1 hok6 waat6 syu2
    • optical mouse