针对某型柴油机排气噪声频谱特性，设计了一种新型阻抗复合式排气消声器。

The design process of a new type of exhaust silencer for some diesel engine models was discussed.

youdao

针对某型柴油机排气噪声频谱特性，设计了一种新型阻抗复合式排气消声器。

The design process of a new type of exhaust silencer for some diesel engine models was discussed.

youdao