China\’s high-speed trains run at a dizzying speed. What equally amazing is that the rails are laid swiftly. It takes only 40 minutes to lay a 500-meter-long track.
[youtube https://www.youtube.com/watch?v=sK7OciH-mek]
China\’s high-speed trains run at a dizzying speed. What equally amazing is that the rails are laid swiftly. It takes only 40 minutes to lay a 500-meter-long track.
[youtube https://www.youtube.com/watch?v=sK7OciH-mek]