在工业化的国家,铁路系统的改进,自然改变了其陆路客货运输的状况。尤其是电力的普及和高速大功率电力机车的发展,使内燃机车一度在铁路运输中的主导地位发生了变化。尽管如此,在这些工业化程度很高的国家中,内燃机车至今仍然在铁路运输中发挥着重要作用。而且,对其运用功率的要求还越来越高。 In industrialized countries, the improvement of the railway system has naturally changed the status of its passenger and freight transport by land. In particular, the popularization of electric power and the development of high-speed and high-power electric locomotive make the change of the dominance of diesel locomotive once in railway transportation. Nevertheless, in these highly industrialized countries, diesel locomotives still play an important role in railway transport. Moreover, the demand for its use of power is still higher and higher.