Urban traffic network is the framework of a city and the carrier of the social economic activities and the passenger-cargo transportation of a city.
城市交通网络既是城市的骨架，又是城市社会经济活动、城市客货运输的载体。
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The author believes that network, producing technology and professional trust is the three factors that influence business outsourcing in Chinas passengertransportation company.