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据美国能源部门的资料,时速48公里、中途停驶的汽车,消耗燃料要比时速60公里、中途不停驶的高出20%。如果美国对交通管理系统进行改造,
According to the US energy department, vehicles traveling at speeds of 48 kilometers per hour and traveling on stops have a fuel consumption rate of 60 kilometers per hour and a 20% increase over non-stop traffic. If the United States to transform the traffic management system,