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首先介绍美国的情况,美国1977年货、客车保有量为1974.5万辆,其中农用的为425.8万辆,占保有量的21.6％,而农业人口仅占全国人口的2％。所以美国农业的高生产率除由于农业本身技术优良、机械完备外,实赖连接农场的高速公路与货车运输能力。 其他如建筑业、制造业、矿山、林业、水电业、服务业等都需要大量汽车,以加速运输,增加效率。故汽车工业在整个工业中实居首要地位,为配合四个现代化建设,实有急起
First of all, the situation in the United States will be introduced. In the United States in 1977, the total number of passenger vehicles in the United States was 1,974,500 vehicles, of which 4.258 million were agricultural vehicles, accounting for 21.6% of the total, while the agricultural population accounted for only 2% of the national population. Therefore, the high productivity of U.S. agriculture, apart from the fact that agriculture itself is technically sound and fully equipped, relies on the expressway and trucking capabilities of the farm. Others such as construction, manufacturing, mining, forestry, hydropower and services all require a large number of vehicles to speed up transport and increase efficiency. Therefore, the automobile industry occupies the first place in the entire industry. To meet the needs of the four modernizations,