🌐中文EnglishDeutschEspañolNederlandsPolskiРусский中文EntityQ905299· pop 12· linked from 22 articles扩压器thermodynamic deviceAvailable in 12 languagesEspañolDeutschРусскийArmenianCzechHungarianKazakhNederlandsPolskiRomanianConnectionsductEntityvelocityEntityCategoriesBuilding engineeringVentilation