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实际上,在汽车技术发展中,货运车辆轻量化材料的应用水平已经成为衡量一个企业技术进步水平和产品水平的重要标志之一
In fact, in the development of automobile technology, the application level of light-weight materials for freight vehicles has become one of the most important indicators to measure the level of technological progress and product quality of an enterprise