论文部分内容阅读
铁路是国家重要的基础设施,与公路、水运、民航等其他运输行业相比,具有覆盖面广、运输量大、成本较低、速度较快、能耗较低、污染较小、安全性好等优势,在综合交通体系中占有重要地位。尽管铁路电气化进程将继续,动车组等新型机车车辆也会陆续出现,未来电力机车逐步取代内燃机车将成为趋势。但在特殊条件下,尤其是自然条件相对恶劣的沙漠地区,内燃机车以其不受自然环境影响,可在任何时候运行的独特特性,依然具有其不可替代性。
Compared with other transport industries such as roads, waterways and civil aviation, the railway is a nation-wide infrastructure with large coverage, large transportation volume, low cost, high speed, low energy consumption, less pollution and better safety Advantages, occupies an important position in the integrated transport system. Although electrification of railways will continue, new types of locomotives and rolling stock such as EMUs will also emerge one after another, and the gradual replacement of diesel locomotives by electric locomotives will become a trend in the future. However, under special conditions, especially in deserts with relatively poor natural conditions, diesel locomotives still can not be replaced due to their unique characteristics that they can operate at any time without being affected by the natural environment.