transportation economic cost的意思|示意

The economic analysis results have shown that the transportation cost of oil and energy consumption decrease after the heating system of tanks get out operation.

经济分析结果表明，油罐热力系统冬季退出运行后，原油输送成本降低，节能降耗效果显著。

To cut diesel fuel cost is an effective measure to decrease total operating cost of railway transportation and also a main way to improve the economic benefits of railway enterprise.

降低燃油成本是降低铁路运输运营总成本的有效手段，也是提高铁路企业经济效益的重要途径。

The spending contains not only cost of transportation method but also the economic loosing of time spending by travel.

这里的出行过程花费不仅包括运输方式费用的花费以及出行占用时间的经济损失。