The deformation of the micro-holes can be obviated by arranging ribs and concave regions on the lamp-box fabric so as to keep good sound absorption performance.
利用灯箱布的凸筋和凹区保证微穿孔不受压变形，保持其良好的吸声性；
The deformation of the micro-holes can be obviated by arranging ribs and concave regions on the lamp-box fabric so as to keep good sound absorption performance.
利用灯箱布的凸筋和凹区保证微穿孔不受压变形，保持其良好的吸声性；
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