从英国利兰公司1934年开始生产四轴载货汽车（以下简称四轴车）算起，至今已有60多年的历史。60多年来，四轴车的发展经历了艰辛而漫长的道路。在一些欧洲国家，如英国、瑞典、丹麦和瑞士使用四轴车已有几十年的历史。然而在另一些工业发达国家却由于法规方面的原因，在相当长 Starting from the British Leland 1934 production of four-axle trucks (hereinafter referred to as four-axle vehicles) count, it has been 60 years of history. For more than 60 years, the development of four-axle vehicles has experienced a difficult and long road. In some European countries, such as the United Kingdom, Sweden, Denmark and Switzerland have been using four-axle vehicles for decades. In other industrialized countries, however, it has been quite a long time due to regulatory reasons