其主要控制技术有管道隔声和吸声、安装消声器等。

The major noise control techniques are conduit sound insulation and absorption and setting up a muffler etc.

youdao

其主要控制技术有管道隔声和吸声、安装消声器等。

The major noise control techniques are conduit sound insulation and absorption and setting up a muffler etc.

youdao