合理的城市道路规划，对未来的城市噪声控制具有重要的意义。
Rational planning of city roads is of great significance to the future noise control in the urban areas.
弄清城市噪声污染情况对噪声控制和城市规划有指导作用。
Ascerting the noise pollution will guide noise control and the city planning.
在本文中，首先，通过阅读大量的城市铁路与道路交通噪声控制资料，对城市中铁路交通和道路交通的噪声机理分别进行综述。
In this paper, some railway and road noise control data were read. Noise mechanisms of railway and road traffic were summarized in cities.
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