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综合介绍了矿用电机车的制动、轮轨的接触与磨损以及受电弓与架空线的接触与磨损等典型的摩擦学问题，并提出了解决问题的思路与方案。
This paper introduces the typical tribological problems such as brake of electric locomotive, contact and wear of wheel and rail, contact and wear of pantograph and overhead line, and puts forward some ideas and solutions to solve the problem.