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一、货车要向大型化发展 货车由“小型”向“大型”发展是世界各国铁路的共同趋势。我国铁路货车也不断向大载重量发展,1980年平均标记载重量达到51t(表1)。
First, the truck to large-scale development of the truck from “small” to “large” development is the common trend of the world’s railways. China’s railway wagons also continue to develop heavy loads, with an average mark load of 51t in 1980 (Table 1).