以下为句子列表：
英文: Abstract: Aimed to realize the problem of quenched rail qualification forcast through quantitative analysis of quenched rail surface hardness by eddy current, and combined the eddy current theory with the computer image processing and signal analysis, the
中文: 文摘:针对涡流无损检测淬火钢轨踏面硬度的定量分析来实现淬火钢轨质量保证预报问题，将电涡流理论与现代计算机图象处理和信号分析相结合，完成硬度测试模型建立。
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英文: Aimed to realize the problem of quenched rail qualification forcast through quantitative analysis of quenched rail surface hardness by eddy current, and combined the eddy current theory with the computer image processing and signal analysis, the hardness
中文: 针对涡流无损检测淬火钢轨踏面硬度的定量分析来实现淬火钢轨质量保证预报问题，将电涡流理论与现代计算机图象处理和信号分析相结合，完成硬度测试模型建立。
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英文: Meanwhile, the fracture was accelerated due to the uneven surface hardness and the unreasonable distribution of the hardening layer on the crankshaft, and the bad lubrication condition in service.
中文: 同时轴左颈表面硬度不均匀、淬硬层分布不甚合理，工作过程中润滑条件差，加速了曲轴的断裂。
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英文: Surface hardness is equivalent or better than to 4H pencil.
中文: 表面硬度相当于甚至好于4H铅笔。
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英文: The coating could be sprayed directly on the wearing surface of anodized aluminum alloy and formed anti-wear layer with high surface hardness and excellent corrosion resistance.
中文: 膜层硬度高、耐磨性好，具有较优良的综合性能，解决了表面修复的难题。
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