| 摘要 |
<p>The wall has individual absorber panels (20-23) stacked on one another and comprising stable circular support frames (30), where sound-absorbing plates (40) are flush-mounted at the support frames. Horizontal frame portions (30b) of the support frames of the stacked panels are mechanically connected with each other to form a self-supporting stack. The horizontal frame portions comprise holes for retaining bolts such that the holes of the stacked panels are aligned with each other in a perpendicular direction. The panels are coated with a sound-absorbing non-woven fabric or a color layer.</p> |
