ventilating fan的用法和樣例：
例句
- The fan at the window made a small whispering roar.
窗上的通風機發出了耳語般輕微的嗡嗡聲。 - The UK Building Regulations permit ventilation fans to be eliminated if trickle ventilators and passive stack extract vents are provided.
英國建築規範允許在設有細流通風設備和被動式的煙囪排煙道的情況下，通風機可以不設。 - This car has a fan cooled radiator.
這部汽車有颱風扇冷卻的散熱器。 - A higher fan spin rate leads to greater air flow.
風扇扇頁轉速高，則風力大。
