[KongchangAI]
Unverified86% confidenceDecision RuleTime unknown

隔音等级看Rw+C+Ctr组合而非单一Rw:Rw反映中高频,Ctr(交通频谱修正量)反映低频交通噪音。临街应看Rw+Ctr综合值,标称Rw40但Ctr为-5实际交通隔音仅35

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