In order to reduce the noise of large cold saw, characteristics of its frequency spectrum was analyzed, Using water curtain to reduce noise has made certain effects, and the noise is redced from 108 dB to 89 dB.?

• 为了降低大冷锯的噪声，对其频谱特性进行了分析研究，并采用水幕技术降低噪声，取得了一定效果，使噪声由108分贝降至89分贝。