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利用工业废物（废纸浆、玉米轴等）制成复合层压板，并对该板的声学性能进行实验，实验结果表明，声频在1000～6000Hz降噪明显，该复合板可做为隔音材料．
The composite laminates are made of industrial waste (waste paper pulp, corn shaft, etc.) and the acoustic performance of the board is tested. The experimental results show that the acoustic noise is obviously reduced at 1000-6000 Hz and the composite board can be used as the sound insulation material.