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城市铁路把京北串起来王晋明城市铁路是解决大城市交通问题的一种有效工具。它具有投资少、见效快、运力大、速度快、污染低等特点，对于解决时间集中、客流量大，运距较长的旅客运输特别有效。目前在许多发达国家的大城市中，城市铁路已成为城市公共交通的一个重要组成部...
City railways north of Beijing Wang Jinming city rail is an effective tool to solve traffic problems in big cities. It is less investment, quick, capacity, speed, low pollution and other characteristics, for solving the time concentrated, passenger traffic, long distance transport of passengers is particularly effective. Currently in many big cities in developed countries, urban railroads have become an important part of urban public transport ...