[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

隔音效果主要取决于克重与密度,克重≥300g/㎡的植绒或多层复合帘可降低约5-8分贝的中高频噪音,但对低频交通噪音效果有限;追求隔音应优先厚重植绒面料而非单纯看遮光率

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