铁路既是国家经济建设的重要组成部分,又是国防建设的重要基础设施和战争行动中的重要交通保障,在现代国防和未来战争中都具有重要的地位和作用。铁路具有运量大、速度快、续行能力强,受气象、季节影响小等特点,特别是具有能运载重型兵器和大型技术装备的优点。在抗美朝、对越自卫反击战以 The railway is not only an important component of the national economic construction, but also an important infrastructure for the national defense construction and an important traffic guarantee in the war operations. It plays an important role in both modern national defense and future wars. The railway has the advantages of large capacity, fast speed, strong continual capacity, little impact by weather and little season, especially the advantages of being able to carry heavy weapons and large technical equipment. In the war against the United States and North Korea, the more counterattacks against self-defense