High density closed-cell foam backing: sound reduction and comfort underfoot.
高密度闭孔泡沫背衬：吸收噪音并提供舒适的脚感。
It shows that the gradual change structure can offer better sound reduction and smaller flow loss.
理论分析和实验测量都已表明，渐变内插管结构具有较好的消声效果和较小的流阻损失。
Heavy and dense materials such as masonry or brick walls are better for sound reduction.
例如石造建筑和砖壁这样的厚实材料也可以很好地达到减少噪音的效果。
The size and the sound reduction performance of the sound-proof door can be customized according to the sound insulation level, installation room and fire rating.
隔声门大小和隔声性能可按隔声等级要求、安装空间、防火等级选定。
The sound reduction hood is mainly used in gas turbine, steam turbine, air separation plant, air compressor, generator set and other large-scale equipment for noise control.
主要用于燃气轮机、蒸汽透平机、空分设备、空压设备、发电机组等大型设备的噪声治理。
The sound reduction hood is mainly used in gas turbine, steam turbine, air separation plant, air compressor, generator set and other large-scale equipment for noise control.
主要用于燃气轮机、蒸汽透平机、空分设备、空压设备、发电机组等大型设备的噪声治理。
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