railway freight volume

• 铁路货运量

railway freight volume的用法和样例：

例句

1. After analyzing the data on railway freight volume of recent years, the authors establish the railway freight volume forecasting model by use of grey theory.
   摘要通过对近年全国铁路货运量的统计数据进行分析，运用灰色理论建立了铁路货运量预测模型。