介绍了一种基于电磁超声波技术的火车车轮表面裂纹自动检测系统的设计方法。
Made a design of electromagnetic acoustic automatic detecting system for surface cracks of the train-wheels.
为了使检测机器人能够在具有螺旋型鳍片的锅炉热交换器承压管道表面上行走，设计了一种新型的复合车轮。
To realize the moving of a detecting robot on the surface of heat exchanger bearing pipes in a boiler with spiral radiators around the pipes, a novel kind of compound wheel was developed.
钢轨必须为车轮提供连续、平顺和阻力最小的滚动表面，还应提供较好的粘着牵引力。
Rail must provide continuous, smooth, least resistance of rolling surfaces and good adhesion of traction to the train wheels.
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