工业材料及工艺的不断开发不仅改变了我们所开的车,而且还改变了汽车工程及材料的组成。纵观1976—1998年美国制造的汽车,印象最深的便是重量减轻。其根源在于七十年代石油危机及共同平均燃油 CAFE 条例生效。这两种驱动因素(以及用户要求)均促使原装车厂对汽车重量、高效动力装置、光滑外 The continuous development of industrial materials and processes has not only changed the cars we drive, but has also changed the composition of automotive engineering and materials. Looking at the cars made in the United States from 1976 to 1998, the most impressive thing is weight loss. Rooted in the seventies oil crisis and the common average fuel CAFE regulations come into force. Both of these drivers (and user requirements) have motivated OEMs to pay attention to the weight of the vehicle, the efficient power plant, the smooth exterior