吸声

And then on to Katherine,sitting desolately,no sign of life except for her shallow breathing.

然后去凯瑟琳屋，她垂头丧气地坐，浅弱呼吸声外，没有一点生机。

The results show that the influences of various backings on the acoustic characteristics of anechoic coating are obviously different.

果表明，不同背衬对吸声覆盖层吸声性能影响具有明显不同特性。

According to acoustic structure theory base,acoustic principle of multi-holes acoustextile and nonwovens characteristics,nonwovens acoustic theory are analysed in the paper.

根据吸声构理论基础以及多孔吸声材料吸声机理,合非织造构特点,系统分析非织造吸声原理。