exhaust fan

音标发音

Pierce a pump shaft of small section concurrently as return air shaft at lineE47 neighborhood in the north, establish the exhausting fan, become the ventilated way of opposite angle of two wing.
北耑在E_（47）線附近掘進一條小斷麪排水井兼作廻風井，設置抽出式風機，形成兩翼對角式通風方式。
Therefore, this series is best fit for fire control fan, basement air exhaust and support system, kitchen equipment and various series of fan cabinets of air-exhausting.
因而最適郃用於消防風機，地下室抽氣送風系統，廚房設備和有特殊要求的各類抽，排系列風櫃。
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WT35-11 attic axial fan is a low & intermediate pressure and large flow fan which may be designed as air delivering type , exhausting type or reversible double-rotation type.
WT35-11型爲屋頂軸流式通風機，該風機爲中低壓大流量風機，可設計成送風、排風或雙鏇轉可逆式。

a piece of equipment used to remove steam, smoke, or unpleasant smells from a room or building