因此，由于更换钢轨时间提前以及昂贵的维护费用，如传统的打磨、铣削或刨削都使铁路的生命周期成本大大增加。
As a consequence, rail life-cycle costs have risen considerably due to premature rail replacements or costly maintenance such as traditional grinding, milling or planing.
钢轨磨耗是否超限直接决定钢轨是否需要更换或打磨，否则将造成重大损失。
Whether we need to change or fix rail decides from whether it reaches the threshold, or it will bring terrible lost.
钢轨磨耗是否超限直接决定钢轨是否需要更换或打磨，否则将造成重大损失。
Whether we need to change or fix rail decides from whether it reaches the threshold, or it will bring terrible lost.
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