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(一)序言从内燃牵引发展看,究竟是采用单机牵引还是采用双机牵引的问题,长期来在国内外都存在着各种不同的看法.经过20多年的发展,我国内燃机车已经达到了一定的水平,在铁路运输中发挥了相当大的作用.1978年,内燃牵引完成全国货运量的10.9%,完成全国客运量的47%.至1979年底,货运采用内燃牵引的里程为7187.7公里,占营业里程的15.6%;客运采用内燃牵引的里程为13187.9公里,占营
(I) Preface From the perspective of internal combustion traction development, whether it adopts single traction or double traction, there are various opinions both at home and abroad for a long time. After more than 20 years of development, China’s diesel locomotives have reached a certain level , Which played a considerable role in railway transportation.In 1978, internal combustion towing completed 10.9% of the country’s freight traffic and completed 47% of the country’s passenger traffic. By the end of 1979, the mileage for the use of internal combustion towed freight was 7187.7 kilometers, accounting for Operating mileage of 15.6%; passenger transport using internal combustion mileage of 13,187.9 km, accounting for camp