The paper provides scientific reference for the prevention of the urban environmental noise.
2
其中城市道路交通噪声约占城市区域环境噪声的80%以上。
Urban road traffic noise approximately composes above city region ambient noise 80%.
3
单位和个体经营者使用空调设备产生的噪声，应当符合城市区域环境噪声标准；
The noise coming from the air-conditioning equipment used by units or self-employed workers shall conform to the environmental noise standard for the locality.
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