airfoil fan

例句：

1. 1. The new airfoil fan is more efficient than the old one.
   这款新型的翼型风扇比旧款更高效。
2. 2. The engineer designed the airfoil fan to improve airflow in the room.
   工程师设计了这款翼型风扇，以改善房间内的气流。
3. 3.The airfoil fan helps to cool down the room during summer.
   这款翼型风扇在夏天帮助房间降温。