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Jyutping seoi2 mat6
Pinyin shuǐ mì

Definitions (Wiktionary)
  1. noun
    watertightness
    • 中國水密隔艙福船製造技藝
      中国水密隔舱福船制造技艺
      zhōng guó shuǐ mì gé cāng fú chuán zhì zào jì yì
      the watertight-bulkhead technology of Chinese junks
Examples (Wiktionary)
  1. Mandarin
    中国水密隔舱福船制造技艺
    中國水密隔艙福船製造技藝
    zhōng guó shuǐ mì gé cāng fú chuán zhì zào jì yì
    • the watertight-bulkhead technology of Chinese junks