1.引言自1981年在北京举行了第一次国际马拉松赛以来,1982年、1983年又举行了两次。在1982年的转播中,技术方案和技术设备比起1981年都有了一些改进,不过由于比赛路线没有改变,从总体上看,与1981年并无太大差别。1983年9月25日的比赛,路线变动很大,技术方案也随之比前两次有较大不同。 1. Introduction Since the first International Marathon held in Beijing in 1981, two more were held in 1982 and 1983 respectively. In the 1982 broadcast, the technical solutions and technical equipment had some improvements over those in 1981, but as a result of the unchanged course, there was not much difference from 1981 as a whole. On September 25, 1983, the route varied greatly and the technical solutions were also significantly different from the previous two.