air-supply duct

• 送风道

air-supply duct的用法和样例：

例句

1. Propeller fans are used to move free air within a room or through channels having low frictional resistance.
   螺旋桨式风机通常用于房间内或通过风道时移动自由气流时，产生微弱的摩擦阻力。
2. Then the practicability and effectivity of this method using on the duct design and optimization are verified by experiments.
   通过试验验证该方法在风道设计优化方面的可行性和有效性。