并且能够降低噪音分贝，防止噪音扩散，减轻噪音公害；
And can reduce the noise decibels, to prevent the spread of noise, reducing noise pollution;
从这些统计数字中可以看到，随着城市中汽车数量的不断增加，空气污染和噪音已经成为威胁城市居民生存的主要公害。
It can be seen from the statistics that with the rapid increase in the number of cars, air pollution and noise have become the main public hazards threatening the survival of city residents.
工作场所发出的噪音是最常见的可防性听力公害。
Noise exposure in the work-place is the most common preventable hazard to hearing.
噪音污染已经是世界七大公害之首，而低频噪声对人体是种慢性损伤。
Noise pollution is already the world's first in seven public nuisance, while the low-frequency noise on the human body is the kinds of chronic injury.
噪音污染作为一种“环境公害”，严重地影响着人们的身心健康和生活质量。
Perceived as an environmental stressor and nuisance, noise does have many negative influences on people's health, well-being and life quality.
噪音污染作为一种“环境公害”，严重地影响着人们的身心健康和生活质量。
Perceived as an environmental stressor and nuisance, noise does have many negative influences on people's health, well-being and life quality.
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