noise reducer

• 消声器

noise reducer的用法和样例：

例句

1. A silencer quietens the noise of the engine.
   消声器把发动机的噪音消弭了。
2. I plant professional sound system automobile production products, including various types of noise on tailpipe and related products.
   我厂专业生产汽车消声系统产品，包括各类消声器尾管及相关产品。