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air ventilation

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  • un.空气通风
  • Web负压式厂房通风设备;逃生口标志;通风百叶
un.
1.
空气通风

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Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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