Concrete entry steps designed for passenger convenience. Metro expansion prioritizes stability with reinforced tunnels and platforms

Concrete entry steps designed for passenger convenience. Metro expansion prioritizes stability with reinforced tunnels and platforms
  • 素材ID:1442801680
    举报
  • 格式:MOV
  • 时长:00:06
  • 作者:OKIOKI
  • 最大分辨率:3840 x 2160px
关键词
城市体系结构楼梯十字形城市车站地下入口机械项目发展消费主义过境工业工程经济业务基础设施现代地铁现场电力行业技术交通交通运输施工技术隧道开挖速度建筑溜槽高速公路商业