[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

隔音毡的隔音量核心取决于面密度,遵循质量定律:面密度每翻一倍,隔音量约增加6dB。选购时应优先看面密度(kg/m²)而非厚度,普通2mm厚隔音毡面密度约3kg/m²,5mm厚可达7-8kg/m²

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