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Multilayer system for sound absorption, with a porous cover layer and a fleece layer, is provided with an additional porous intermediate layer and an additional fleece layer arranged on top of one another
Multilayer system for sound absorption, with a porous cover layer and a fleece layer, is provided with an additional porous intermediate layer and an additional fleece layer arranged on top of one another
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机译：具有多孔覆盖层和羊毛层的用于吸声的多层系统具有彼此叠置的另外的多孔中间层和另外的羊毛层
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摘要
The multilayer system (1) for sound absorption, with a porous cover layer (2) and a fleece layer (3), is characterized by the fact that it comprises an additional porous intermediate layer (4) and an additional fleece layer (5) arranged on top of one another.
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