论文部分内容阅读
墨西哥国铁(FNM),从1990年起,开始实施增加机车数量和改造老机车的现代化“连续计划”。在开始实施“计划”的头几年,每年约购买70台新机车,到“计划”后期,
Mexico’s National Railways (FNM) has been implementing a “continuous program” of modernization since 1990 to increase the number of locomotives and to transform old locomotives. In the first few years of implementing the “Plan,” about 70 new locomotives were purchased each year. By the end of the "Plan,