The closed cell polyimide foams were fabricated by foaming the precursor balloons, and the foams' acoustic absorption properties were tested.
采用前驱体微球法制备闭孔聚酰亚胺泡沫，并对其吸声性能进行了研究。
These 'trees' provide seating, shade and acoustic absorption and at night they serve as an illuminate bodies which fill the room with white or blue glowing light.
这些“树”形的家具可以坐、可以遮阴、可以吸声，夜晚还可以做为发光体透出白色或者蓝色的光。
The noise-deadening property was also analyzed and pointed that it was a new composite material which has much high performance such as excellent noise-deadening and acoustic absorption etc.
对该降噪复合材料的降噪性能进行了测试分析，结果表明这是一种轻质、吸声隔声效果较好的新材料。
The acoustic attenuation of suspending liquid is divided three kinds as absorption attenuation and scattering attenuation and diffusion attenuation.
悬浮液的声衰减分为三种主要类型：吸收衰减、散射衰减和扩散衰减。
Conclusion Liver tissues and structures varied by HL-1 quick intravenous infusion. The promotion in ultrasound attenuation and absorption indicated a shift of acoustic environment.
结论静脉快速输入HL - 1可使兔肝脏组织结构发生相应的变化，使肝脏声吸收衰减增加，因而改变了肝脏组织声学环境。
Surface acoustic wave touch screens rely on the absorption of sound waves to detect a touch so a finger or gloved finger will work.
表面声波触摸屏凭借吸收声波来判断触摸反应，所以带不带手套对它的工作没有任何影响。
The photo-acoustic effect results from the absorption of modulated light energy.
粉煤灰光声效应的产生源于粉煤灰材料对入射调制光能量的吸收。
In applied acoustics field, the sound absorption measurement of an acoustic material and structure is always an important and basic task.
在应用声学领域，声学材料与结构的吸声测量始终是一项重要的工作。
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.
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；
With the acoustic paper or sound proof cotton , the punch ceiling increase absorption capacity of whole closed space and the noise reduction can alter the impact .
冲孔天花板背面加入隔音纸或者隔音棉，有助于增加整个密闭空间的总吸收量，降低噪音给我们带来的影响。
With the acoustic paper or sound proof cotton , the punch ceiling increase absorption capacity of whole closed space and the noise reduction can alter the impact .
冲孔天花板背面加入隔音纸或者隔音棉，有助于增加整个密闭空间的总吸收量，降低噪音给我们带来的影响。
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