A new type of porous sound absorbing material was made from super-strength gypsum and glass fiber. 摘要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。
The emphasis is to study the sound absorption properties of gradient polyurethanes at different temperatures and pressures. 研究了梯度聚氨酯在不同温度和压力下的水声吸声性能。
Woven fabrics have sound proof property, weaving high density multi-layer fabric can get good sound proof property. 结果表明机织物具有的隔声性能以高密度多层结构织物的隔声效果最好。
In theis paper, the characteristics of sound insulation of a typical aicraft sidewall structure have been investigated. 研究了典型飞机壁板结构的隔声特性。
用作形容词 (adj.)
A new type of porous sound absorbing material was made from super-strength gypsum and glass fiber. 摘要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。
The emphasis is to study the sound absorption properties of gradient polyurethanes at different temperatures and pressures. 研究了梯度聚氨酯在不同温度和压力下的水声吸声性能。
The result is important for solving the problems of the bad repeatability and low measurement accuracy in the structure sound insulation measurements. 对解决结构隔声测试方法中声源信号可重复性差,测试结果精确度不高的问题具有重要意义。
Woven fabrics have sound proof property, weaving high density multi-layer fabric can get good sound proof property. 结果表明机织物具有的隔声性能以高密度多层结构织物的隔声效果最好。