To counter the fact that for readjusting the rail resistance welding parameters,the again and again method which is in common used at home and abroad expended much time and much material, the round for round orthogonal test method with its CAD is used for the first time .
针对国内外用屡试法调试钢轨接触焊参数十分费时耗材，首次应用逐次正交试验法并辅以ＣＡＤ，其优化焊轨参数的科学性已为简便和高效所证明。
Grey spot has become the most conspicuous defect in resistance welding joint of the structure of continuous welded rail track.
灰斑已成为无缝线路钢轨结构接触焊接头最突出的缺陷。
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