noise-cancelling circuit

例句：

1. 1. The noise-cancelling circuit in the headphones is excellent, providing a clear audio experience.
   耳机中的降噪电路非常出色，提供了清晰的音频体验。
2. 2.The engineers developed a noise-cancelling circuit that can effectively reduce background noise in recording studios.
   工程师们开发了一种降噪电路，可以有效地在录音棚中减少背景噪音。
3. 3. The noise-cancelling circuit in the car's air conditioning system helps to block out distracting road noises.
   汽车空调系统中的降噪电路有助于屏蔽掉道路的干扰噪音。