该模型克服了货运量的单调性和周期波动性给预测带来的困难。
Meanwhile, the freight volume is calculated in each link and the freight volume of Jiu-hua is obtained at last.并对九华物流园区各个环节的物流量进行了计算,最终得出九华物流园区的物流量。
Urban rail transit has the characteristics of large freight volume, fast, safety and less environmental pollution.城市轨道交通具有运量大、速度快、安全性高和环境污染低等特点。