whirl tube

例句：

1. 1. The whirlingmotion of the blades creates a powerfulairflow.
   叶片的旋转运动产生了强大的气流。
2. 2. The engineer designed the whirling tubeto improve efficiency.
   工程师设计了旋涡管以提高效率。
3. 3. The whirling tube isused in various industrial applications for its uniqueproperties.
   旋涡管因其独特的性质被用于各种工业应用中。