论文部分内容阅读
汽车生产的历史已有100多年,世界主要工业发达国家都将汽车工业作为国民经济发展的支柱产业。目前,世界上每年生产的汽车近5000万辆,其中轿车约占70％。汽车的拥有量还在逐年增加。目前,北美拥有汽车1.8亿辆,平均1.5人1辆,我国拥有汽车800万辆,平均150人1辆。汽车工业消耗大量的材料。据统计,每年汽车生产和维修约消耗世界
The history of automobile production has been more than 100 years. The major industrialized countries in the world regard the automobile industry as the pillar industry for national economic development. At present, nearly 50 million vehicles are produced each year in the world, of which about 70% are sedans. The number of cars is still increasing every year. Currently, North America has 180 million vehicles, an average of 1.5 people a, China has 8 million vehicles, an average of 150 people a. The automotive industry consumes a lot of material. According to statistics, annual automobile production and maintenance consume about the world