[KongchangAI]
Unverified82% confidenceTradeoffTime unknown

美观装饰性与实际吸音性能常冲突:表面硬质喷漆或密实包装的'装饰吸音板'反射高频,真正吸音需要透声表面(穿孔率≥15%的穿孔板或透气布艺)

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