Part IV: This part analyzed the circular mechanism of the ecological tourism urban.
第四部分分析了生态旅游城市的循环机制。
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IV the local intelligent transportation system is an important branch of the intelligent transportation systems (ITS), which providing a new solution to the urban transportation.
区域智能运输系统是智能运输系统的重要分支，为解决城市及其周边特定区域的交通问题提供了新的解决方案。
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Chapter IV Influencing factors and macroeconomic effects of the structure of urban residents 'financial assets.