Unverified82% confidenceCautionTime unknown
不要购买聚酯纤维（PET棉）压缩板当低频陷阱，其流阻和密度不足对低频几乎无效，这类产品多为装饰吸声用途；低频吸收认准岩棉/玻璃棉芯材
1
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82%
Confidence
Long-term
Relevance
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