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意大利 Unicardan 集团的 Birfield Tr-ansmissioni 公司制造出了一个成本比现在的液压动力转向系统降低4/5和重量降低2/3的空气动力转向系统,如图1。该系统靠发
Birfield Träsmissioni, from Unicardan Group in Italy, has produced an aerodynamic steering system that costs 4/5 less than the current hydraulic power steering system and weighs 2/3 less. The system by hair