例句 /

By using the improved gravity model and gray theory model, the essay makes forecast analysis on future passenger traffic volume of Shjiazhuang-Taiyuan passenger-dedicated line from three aspects, including passenger flow of local line, passenger flow orig

By using the improved gravity model and gray theory model, the essay makes forecast analysis on future passenger traffic volume of Shjiazhuang-Taiyuan passenger-dedicated line from three aspects, including passenger flow of local line, passenger flow orig

摘要利用改进的重力模型和灰色理论模型,从石太客运专线的本线客流、跨线客流和诱增客流3个方面,分别以客运通道周边城市的GDP和人口分布密度、石太客运通道既有线的旅客运输量、城市间的加权运行时间为影响因子,对石太客运专线的旅客运输量进行预测分析。