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窄轨电机车在使用中,由于运行及频繁启动和制动,轮圈踏面会磨损。《窄轨电机车完好标准》规定,轮圈踏而磨损量不超过原厚度的1/2,踏
Narrow-gauge electric locomotive in use, due to the operation and frequent start-up and braking, rim tread wear. “Narrow gauge electric locomotives in good condition” provides that the amount of rim tread wear does not exceed the original thickness of 1/2, riding