全部

1·Research purposes: To solve the problems on designing continuous welded rail on bridge in the small radius curve section.

研究目的：解决小半径曲线地段桥上无缝线路设计的难题。

2·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。

3·In order to guarantee the safety and stability of high-speed train, the study of continuous welded rail (CWR) tracks has become more and more important.

为了保证无缝线路轨道的使用寿命及确保行车安全，对于无缝线路技术的研究显得越发重要。

4·The rail welding plays an important role in the engineering of laying continuous welded railway (c WR), and decides the quality of rail tie-in directly, which has great influence on railway security.

钢轨焊接是无缝线路建设工程中的关键环节，它直接决定了钢轨接头的质量，从而对铁路安全有重要影响。