钢轨断面使用特殊的轨距边角磨石来保养。
The rail's existing profile is maintained by using special gauge corner grinding stones.
因此开发高速钢轨断面检测技术具有重要意义。
Therefore, developing high-speed detection technology for rail profile has great significance.
该技术生效的前提是钢轨断面在确定的公差范围之内并在打磨前未被损坏。
A prerequisite for the effectiveness of the technology is that the rail profile is within defined tolerances and undamaged before the grinding.
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