| 摘要 |
<p>The ceiling reinforcing installation assembly (1) for the reducing of vibrations and structure-borne noises consists of cavity resonators manufactured as hollow cavities which consist of individual sheets (3,4,7) which have comb-like slots by which they fit together. The cavity resonators have differently modulated impedances, the cavities are manufactured in different lengths, and the individual sheets have different heights. The cavities are open at least on one side.</p> |
