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铁路电气化是提高运输能力,节约能源的有效措施。世界主要工业发达国多以发展电气化铁路作为铁路现代化改造的中心环节,并利用电力牵引来完成大部分的运量。至1983年世界已建成运营的电化铁路达16万8千公里,占总铁路里程的14.4％,电化率高于20％的已有20多个国家。苏联电化里程已达44800公里,占营业里程的三分之一,担负着总货运量60％
Electrification of railway is an effective measure to improve transportation capacity and save energy. The major industrialized countries in the world mostly develop electrified railroads as the central link in the modernization of the railway and make use of electric traction to accomplish most of the traffic. By 1983, there were 168,000 electrified railway lines in operation in the world, accounting for 14.4% of the total railway mileage and more than 20 countries with electrification rates above 20%. Soviet Union has reached 44,800 km mileage, accounting for one-third of the mileage, responsible for the total volume of 60%