To enhance noise reduction and to improve flow resistance always attend to one thing and lose another in the case of designing silencer for low frequencies noise with high velocity flows.
对需要控制低频噪声的高速气流场合应用消声器，消声量和系统的阻力损失经常成为顾此失彼的二难选择。
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The characteristics of this product are simple structure, durable, good appearance, convenient for installation, excellent resistance to corrosive, good silencer and good absorber.