... acknowledgement 确认书 acoustic absorptivity 吸声率 acousitc emission examination 声发射检验 ...
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sound absorption coefficient 吸声系数 ; 吸声率 ; 吸音率 ; 声吸收系数 molar absorption coefficient 克分子吸光系数 ; 摩尔吸光系数 ; 摩尔吸收系数 ; 莫耳吸收系数 .
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... diffuse absorption factor 漫反射系数 sound absorption factor 吸声率 Sbeard absorption factor 应力集中系数 ...
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它是材料吸收声波的能力，即所谓的吸声率。
This is the ability of the material to absorb sound and is called its sound absorption coefficient.
随着孔隙率、孔径的减小，多孔铝的共振吸声系数有所下降，吸声频谱曲线向低频方向移动，且频带宽度展宽。
When the porosity and pore diameter reduced, the sound absorption curve moved to the low frequency zone and the frequency bandwidth increased at the same time.
研究了压缩率和密度对发泡法制备的泡沫铝样品吸声性能的影响，与报道的日本用发泡法制备的泡沫铝样品的研究结果进行了比较。
Influence of compressive ratio and density on sound absorbing property of foamed aluminum made by bubbling method has been studied and compared with that of Japanese sample.
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