duct type fading

例句：

1. 1.The new model has a duct type fading design that is very popular among consumers.
   这款新模型采用了导管型衰减设计，非常受消费者欢迎。
2. 2.In the study, we found that duct type fading can significantly affect the performance of the system.
   在研究中，我们发现导管型衰减可以显著影响系统的性能。
3. 3. The engineers carefully designed the duct type fading to ensure optimal heat transfer efficiency.
   工程师们仔细设计了导管型衰减，以确保最佳的热传递效率。