密閉 [－闭]

Jyutping mat6 bai3
Pinyin mì bì

Definitions (CC-CEDICT)
  1. sealed
  2. airtight
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. verb
    to make airtight; to seal
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）