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隔音是指人们用各种方法来减少声音的来源给人们带来的声压。以下有几种方法可以降低声音，例如拉开发出声音的来源与接收声音的地点的距离、用隔音屏障或隔音板来反射与吸收声波以及使用主动降噪机来降噪[1][2]。
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