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瑞典研究发现 ,只需要对既有的装载限界作一些小的改动 ,就能够适应宽车体的客车和货车 ,使宽车体旅客列车的运输能力提高 2 0 %～ 30 % ,并且克服了双层客车特有的缺点。
The Swedish study found that only minor modifications to the existing loading limits were needed to accommodate wide body buses and vans and to increase the transport capacity of wide body passenger trains by 20-30 percent and to overcome the double Layers of passenger-specific shortcomings.