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隔音屏障 为减少声音传播的屏障：它们是广泛应用于工业和公路、铁路来屏蔽噪声源的接收器。屏障将不会减少接收端的噪声，但会增加，除非屏障也覆盖了吸波材料。
environ.	zarataren kontrako hesi; pantaila akustiko