air propeller

• 空气扇,空气螺旋桨； 飞机螺旋桨

air propeller的用法和样例：

例句

1. He opened a window to allow air to circulate.
   他打开了一扇窗，使空气流通。
2. Can you fit the air conditioner in the window?
   你能把冷气机装在这扇窗户上吗？
3. The timing of the gun was precisely synchronised with the turning of the plane's propeller.
   风门的调速与飞机螺旋桨的转动精确同步。