| 摘要 |
A demountable acoustical panel structure having a honeycomb core, and a thin, dense, sound transmitting glass fiber sheet of uniform thickness adhered to each of the oposed major surfaces of the core. One of the thin sheets advantageously carries segments or patches of a separable fastening means to enable the panel structure to be installed on a supporting surface provided with cooperating segments or patches of a separable fastening means by simply aligning said fastening means.
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