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由于机械车辆的运转和振动,以及排气声和喇叭声,都会发出(或引起)无规律、不协调的、而且是人们所烦燥、不愿入耳的异响。它有碍于人体的健康,故人们称之为噪声。在现代化的大城市,绝大部分噪声来自频繁过往的车辆。噪声污染对城市的生活环境,人体健康都有着严重的影响,并且干扰人们的正常工作、学习和休息(例如医院、学校及科研部门)。其危害程度仅次于废水废气,成为城市三大公害之一。
Due to the operation and vibration of mechanical vehicles, as well as the exhaust sound and horn sound, will be issued (or caused) irregular, uncoordinated, and people are irritated, do not want to hear the sound of the ear. It hinders the health of the human body, so people call it noise. In modern metropolises, the vast majority of noise comes from frequent passing vehicles. Noise pollution has a serious impact on the city’s living environment and human health, and disrupts people’s normal work, study and rest (such as hospitals, schools and research departments). Its damage is second only to wastewater and waste gas and has become one of the three major public hazards in the city.