volume freight traffic的用法和樣例：
例句
- The model overcomes the unpredictability due to monotonicity and periodical fluctuation of freight volume.
該模型克服了貨運量的單調性和周期波動(dòng)性給預測帶來(lái)的困難。 - Now China ranks the antecedency in the world in the using efficiency and freight amount per kilometre.
目前中國鐵路使用效率及平均每公里貨運量，均位居世界前列。
