drag reducting cowling

例句：

1. 1. The new car has a drag reducing silencer to improve its performance.
   这款新车配备了一个拖曳式消音器，以提升其性能。
2. 2. The engineers designed the engine with a drag reducing silencer to reduce noise.
   工程师们设计了这款发动机，并安装了拖曳式消音器以减少噪音。
3. 3. The aircraft's tailplane is equipped with a drag reducing muffler to improve stability.
   飞机的尾翼装备了一个拖曳式消音器，以改善稳定性。