The absorption property of foamed nickel was researched in this paper.
本文详细的研究了泡沫镍中高频的吸声性能.
Aluminum fibre porous sound - absorbing panel is a new type of sound - absorbing material.
铝纤维多孔吸声板是一种新型吸声材料.
In addition, the housing may include sound absorbing materials.
此外, 这种外罩可装有吸声材料.
The panel resonance always affects the absorption characteristics of microperforated - panel ( MPP ) absorber.
板振动对微穿孔板吸声体的 声学 特性存在一定的影响.
The aim was to research the sound absorption properties of graded polyurethanes at incident angles.
主要研究梯度聚氨酯在全入射角下的吸声性能.
For the porous absorbent sample , we found its sound transmission loss don't accord to mass - controlled law.
一类是多孔吸声材料, 发现它的隔声量并不遵从质量作用定律.
Traditional Methods : To measure absorption coefficient are standing wave tube and reverberation which have some shortcomings.
传统的吸声系数测量方法主要有驻波管法和混响室法,而驻波管法和混响室法都存在着一些缺陷.
Its good characteristics include low cost, high durability and good property of sound absorption.
它具有成本低 、 耐久性高、吸声性能好的特点.
A new type of porous sound absorbing material was made from - strength gypsum and glass fiber.
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.
Surface impedance is one of the key factors affecting the sound absorption features of materials.
吸声材料的表面阻抗是影响材料吸声性能的主要因素之一,受到材料的特征阻抗和厚度的影响.
The sound absorption coefficient of the material was tested by standing wave tube method.
采用驻波管法测试材料的吸声系数.
The development of acoustic materials and the acoustic absorption mechanism was generally introduced.
综述了水声吸声材料的发展、应用状况及吸声机理的研究进展.
Computation of the acoustic field in an anechoic tank is important for selection of absorption lining.
消声水池的声场计算对消声水池尺寸的确定和所敷设的吸声材料参数的选择十分重要.
It is an important way with the sound - absorbing materials to improve the sound pollution.
利用吸声材料来吸声降噪是治理噪声污染的重要途径之一.
It is shown that this approach can predict the performance of MPP accurately.
表明传递矩阵法是预测较复杂形式微孔板结构吸声性能的一种有效的方法.