Based on the noise analysis of characteristics and frequency spectrums in a 5500 m2 Reverse Flow Natural-Ventilation Cooling Tower of Power Plants. By an application example of noise control equipment and technology,A new method for noise control of the cooling tower is proposed.%通过对某电厂5500 m2逆流式自然通风冷却塔的噪声特点和频谱分析，以声源降噪设备和技术应用实例，提出了一种冷却塔噪声治理的新办法。
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