| 摘要 |
<p>At least one soft fibre or polystyrene damping panel is bonded to a cover panel of wood, plastic or chip board etc. in which the bonding agent is applied as a multitude of individual disconnected adhesive zones rather than a solid layer to improve the sound absorbing qualities. Pref. a perforated sheet of paper, plastic or metal is arranged between the panels to limit the adhesive zones.</p> |
