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据英国运输和道路研究试验所(Trans-port and Road Research Laboratory),估计,英国每年仅车辆总重在3.5 t 以上的商用载货汽车所消耗的燃料就超过了5万亿升。重型载货汽车一般都是高的轴负荷及笨重的集
According to the Trans-port and Road Research Laboratory, it is estimated that more than 5 trillion liters of fuel are consumed by commercial vans in the UK each year weighing more than 3.5t gross vehicle weight. Heavy duty trucks are generally high shaft loads and bulky sets