对尖劈型吸声材料用类比变截面管道的声场理论，给出了计算其吸声系数的一种方法；
The theoretical method for calculating the absorption coefficient of the absorber is provided by analogying the acoustic field in a tube with varying cross section.
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.
在噪声控制中用于室内吸声降噪以及通风空调系统和动力设备排气管中的管道消声等。
In the noise control, it can be used in sound absorption and noise reduction in the room.
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