吸声原理

按照薄膜共振吸声原理设计了膨胀珍珠岩的憎水化处理和对制品表面的防水处理措施；

The hating-water treatment of expanded perlite and the waterproof measure of products surfaces are designed according to the ply resonance sound absorbing principle .

低频宽带共振吸声结构与原理

Broadband resonance sound absorption and it ′ s principle for low frequency

分析了DF12型机车运行时的主要噪声源及布置情况，详细介绍了司机室吸声、隔声原理和采取的措施，以及进一步改进的措施。

The main noise sources of DF_ ( 12 ) locomotive at running and the noise sources ' arrangement are analysed . The principles of sound absorption , and sound insulation are described and the improving measures are proposed .

本文针对装饰织物吸声隔音的基本原理和应用作一简述。

Therefore , the application and research work as well as some basic principles on this kind of fabrics are reviewed and introduced .

介绍了多种吸声材料的组成结构、吸声特性及吸声原理；

This article introduces that what sound absorption materials is made of and the principles that it can absorb sound ;

根据吸声结构理论基础以及多孔吸声材料的吸声机理，结合非织造布的结构特点，系统分析了非织造布的吸声原理。

According to acoustic structure theory base , acoustic principle of multi-holes acoustextile and nonwovens characteristics , nonwovens acoustic theory are analysed in the paper .