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钢轨轨顶内侧轨距角处由于重复的轮轨荷载作用,会产生接触疲劳裂纹,并逐渐发展,成为钢轨折断的主要原因之一.
Due to repeated wheel-rail loads, contact fatigue cracks will develop and gradually develop, becoming one of the main reasons for rail breaking.