风机噪声 meaning in English

fan noise

Assessment on blower ' s noise pollution of a building roof
某楼顶风机噪声污染测评
Reverberant room method for sound power level testing of ventilators
空调风机噪声声功率级测定?混响室法
Application of noise control technique of movable combined mine fan
可移动组合式矿井风机噪声控制技术的应用
The regulation for the main fan noise
风机噪声治理
Experimental study on noise control of a centrifugal blower using tooth shape vane
齿形叶片降低离心式风机噪声的实验研究

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