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在美国由于内河水运成本低(只及铁路的四分之一),载量大(图1,15个驳子载量两万多吨,最大船队可达5～6万吨)、运距长,且许多用煤户——工业企业均沿河布点,所以尽管煤矿远离河边,仍以铁路接通港口进行铁水联运,以充分发挥水运的作用。
In the United States, due to the low cost of inland waterway transport (only one quarter of the railway), large loading capacity (more than 20,000 tons in Figure 1 and more than 20,000 to 60,000 tons in the largest fleet) Long, and many households using coal - industrial enterprises are located along the river, so even though the coal mines are far away from the riverside, the railway is still connected to the port to carry out hot metal transport to give full play to the role of water transport.