汽车是一种综合性强、技术含量高、批量大的产品 ,它在国民经济、国防建设和人民生活方面起着十分重要的作用。汽车的制造和应用情况是衡量一个国家发达水平的重要标志。各工业发达国家都把汽车工业做为国民经济的支柱产业。汽车的重要性愈来愈大。但是汽车的诞生与成长过程并 Automobile is a product with strong comprehensiveness, high technological content, and large volume. It plays a very important role in the national economy, national defense construction, and people’s lives. The manufacture and application of automobiles is an important indicator of a country’s level of development. All industrialized countries regard the automobile industry as a pillar industry of the national economy. The importance of cars is growing. But the birth and growth of the car