howling damping

例句：

1. 3.
   在工程学中
2. 1. The old man was howling damping in the back of the car.
   老人在车里呻吟着。
3. 2. The engineer designed a new damping system for the aircraft.
   工程师为飞机设计了一种新的减震系统。
4. 3. The scientist used a damping device to reduce the noise level in the lab.
   科学家使用了一种减震设备来降低实验室里的噪音水平。