制程条件对聚酯纤维/热塑性聚氨酯吸音复合材_电子资料文库 关键字:吸音,热塑性聚氨酯,聚酯纤维 [gap=994]Keyword:Sound Absorption,Thermoplastic Polyurethane,Polyester
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sound absorption coefficient 吸声率 ; 吸音率 ; 声吸收系数
sound absorption material [建] 吸声材料 ; 吸音材料
coefficient of sound absorption 吸音系数
structure-borne sound absorption 结构的音吸收 ; 聚体的结构
slip resistance and sound-absorption 防滑性和吸声 ; 支抵抗和健全 ; 抗滑
Aluminum foam is a new type sound absorption material. It has excellent absorption properties in the range of medium and high frequencies.
泡沫铝是一种新型的吸声材料,在中高频具有良好的吸声效果,研究采用泡沫铝复合板来提高其低频吸声性能。
参考来源 - 泡沫铝复合板低频吸声性能实验分析与研究The sound absorption mechanism of the collagen fiber was investigated and the sound absorption mathematical model was established. The forecast of the collagen fiber as absorption material was put f orward.
通过对胶原纤维吸音减振作用机理的研究,推导并建立其吸音减振数学模型,并对胶原纤维作为吸音材料的应用做了进一步展望,为该类材料在声学方面的实际应用奠定了理论基础。
参考来源 - 胶原纤维吸音机理的研究Meanwhile, the system to measure sound absorption in turbid water has been built up in the laboratory. There are some apparatus, such as air degassing, temperature control, etc, in the designed system.
主要有声波的衰减理论,声吸收测量的原理及方法,混浊水的组成等;同时,在实验室中搭建了一套混浊水声吸收系数测量系统,该测量系统具备比较完善地真空除气、温度控制等设施。
参考来源 - 混浊水介质声吸收实验测量研究Based on comparing this method with traditional method-standing wave ratio in laboratory testing, this paper applied this method to determine the sound absorption coefficient in the condition of perpendicular incidence in-situ .
笔者在将其与传统的驻波比法进行实验室测量比较的基础上,将这种方法应用于现场条件下材料垂直入射吸声系数测量。
参考来源 - 应用传递函数法进行吸声系数的现场测量In seawater sound transmission loss includes geometry spread loss, medium sound absorption, interface reflection attenuation, and nonuniform object scattering.
海洋中声传播损失包括由于几何扩展损失、介质声吸收,海底海面反射衰减,非均匀体散射。
参考来源 - 近岸海水中悬浮颗粒物对声纳探测性能的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
The undulating roof would provide sound absorption, artificial lighting and shelter for trucks.
起伏的屋顶将同时具有吸音，人工照明以及为流动餐车提供遮蔽休息区的功能。
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。
Methods Use a standing wave tube to measure the sound absorption coefficient of many kinds of grain.
采用驻波管法测量了多种粮食的吸声系数。
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