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oxygen mask system造句

"oxygen mask system"是什麼意思  oxygen mask systemの例文  

造句與例句手機手機版

  • In recent years oxygen mask systems for high-altitude climbing which pump oxygen constantly have been increasingly replaced by systems supplying oxygen on demand via nasal cannulas.
  • It's difficult to find oxygen mask system in a sentence. 用oxygen mask system造句挺難的
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