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41. | prediction of freight volume |
| 货物运输量预测 |
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42. | return cargo freight |
| 回运货物运费 |
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43. | tonnage freight trai |
| 重质货物列车 |
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44. | send goods by freight |
| 通过货车运送货物 |
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45. | consolidated freight rate |
| 混合装载货物运费率 |
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46. | conversion of freight mileage |
| 换算货物周转量 |
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47. | freight handling area |
| 货物搬运区面积 |
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48. | freight traffic statistical index |
| 货物运输统计指标 |
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49. | classification of freight rate |
| 货物运价等级 |
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50. | freight train hour diagram |
| 货物列车小时图 |
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