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  • 夜访地铁接触网检修工:一年需要紧固45万颗螺丝

    核心提示|昨晚11点,喧嚣了一天的郑州地铁1号线列车收工,陆续驶入郑东车辆段。空荡的站台与隧道显得异常宁静,这个时候,有一群人就要开始一天的工作了,很多人称他们为地铁“蜘蛛侠”,每天昼伏夜出,倔强地守护着自己的网。24日凌晨,记者夜访郑州地铁接触网检修工,体验下这些地铁“医生”不为人知的苦与乐。 “我们的工...
  • Global Wheel Bolt & Wheel Nut Market...

    The Market study titled Global Wheel Bolt & Wheel Nut Market 2018 by Manufacturers, Regions, Type and Application, Forecast to 2023 by Fior Markets frames investigation, technical inventions, major manufacturers, applications, company profile, product distinction, investments in features rich...