[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

真正降噪需选带PVB夹层的隔音膜(厚度≥0.76mm声学PVB),能在中高频(1000-4000Hz人声/交通噪音段)提升5-8dB,对低频(<250Hz重卡轰鸣)几乎无效

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82%
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Long-term
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