| 摘要 |
A sound source muting plate comprises a central plate group (2) and clamping plates (4) separately superimposed and adhered to the upper surface and the lower surface of the central plate group (2). The central plate group (2) is formed by one central plate (1) or formed by more than two central plates (1) superimposed and adhered sequentially on a plane. The central plate (1) is a planar plate structure having a through hole (3). |
