多孔吸声材料

离心玻璃棉属于多孔吸声材料，具有良好的吸声性能。

Centrifugal glass cotton belongs to the porous sound-absorbing material , have good sound-absorbing performance .

以高强石膏为胶凝材料，内掺玻璃纤维，制备出一种新型多孔吸声材料。

A new type of porous sound absorbing material was made from super-strength gypsum and glass fiber .

本文论述了高速列车通过隧道时所产生的空气动力学效应及其危害，针对这一问题，提出了在隧道内壁铺设多孔吸声材料，减缓微压波的解决方案。

This article elaborated the aerodynamics effects and the harms which were generated by the high-speed train through the tunnel .

纺织材料在使用时能够吸收声音，降低噪音，属于典型的多孔吸声材料。

The textile materials are typical porous materials that having powerful sound absorption ability and can be used as absorber in life .

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 .

进、排气系统内往往含有多孔吸声材料，比如进气空滤器的滤芯和排气消声器内的玻璃纤维。

As known , intake and exhaust systems often contain a porous sound-absorbing material , such as filter element in the intake air-cleaner and glass fiber in the exhaust muffler .

吸声材料种类繁多，依照吸声机理可分为三大类，即多孔吸声材料、共振型吸声结构和兼有两者特点的复合吸声结构。

The sound absorbers can be divided into three kinds according to the sound absorption mechanism , porous sound-absorbing material , resonating sound absorption structure and compound sound absorption structure .

以普通硅酸盐水泥、膨胀珍珠岩、陶粒主要原料，加以一定的辅助材料，研制出一种新型水泥基复合多孔吸声材料。

A new cement was prepared which consisted of the composite porous sound absorbing material with portland cement , expanded perlite , ceramsite as main raw materials and some supplementary substances .

以高强石膏为主要原料，内掺玻璃纤维，在发泡剂的作用下，制备出一种新型多孔吸声材料，采用驻波管法测试材料的吸声系数。

A new type of sound absorbing material was made from super-strength gypsum and glass fiber and the sound absorp-tion coefficient of the material was tested by standing wave tube method .

石膏基多孔复合吸声材料的研究

Development of a Sound Absorbing Gypsum-Based Porous Composite Material

吸声帘幕属于多孔有机纤维吸声材料。

The acoustic curtain belongs to the porous organic-fiber acoustic material .