[KongchangAI]
Unverified90% confidenceCautionTime unknown

面密度2kg/㎡的隔音毡对中低频噪音(如低音炮、楼上脚步声等)的衰减能力有限,对低频隔音有刚需的用户需要加厚或叠加多层,且效果仍可能不够理想

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90%
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Long-term
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