这个研究报告完成于一九八二年底。一九八三年夏秋之交,由中汽公司技术经济情报研究中心在《汽车情报》1983年第11期上登载。后又编印单行本,在机械部技术发展和技术经济研究成果发表会上发表。但是,由于印行份数较少,许多单位和个人特别是专用汽车行业的单位和个人未能见到。本刊收到许多索取这个研究报告的信函。为此,本刊特予重新发表,以满足各有关单位和个人的要求。 The study was completed in late 1982. The turn of the summer and autumn of 1983 was published by the Center for Technical Economic Information Research of China National Automotive Industry Corporation (CAIC) in Issue 11 of 1983. Later, it was printed in the form of a booklet, which was published at the technical department of the Ministry of Machinery and the presentation of the results of the technical and economic research. However, due to the small number of printing lines, many units and individuals, especially those in the private automotive industry, can not see it. This journal has received many letters for this study. To this end, we hereby give special re-issue to meet the requirements of the relevant units and individuals.