本文对不同焊接方法的钢轨焊头质量进行比较，提出线路上应优选移动式闪光焊焊接钢轨，并提出基地焊接长定尺钢轨的参考工位工序配置。
This paper makes a comparison of the quality of rail joints welded by different methods, proposes that the movable flashed welded rail should be adopted on passenger dedicated line, and pres...
莱文不愿对上周的辩论做出评论，但有迹象表明，这位董事长的强硬立场起码在一定程度上有所缓和。
Levin would not comment on the debate last week, but there were signs that the chairman was backing off his hardline stand, at least to some extent.
派迪恩说：“它们的基础新陈代谢率一定很高才能长那么快。”
Says Padian: "They must have had a high basal metabolic rate to grow that fast."
应用推荐