How to pave the tunnels for high-speed railway

The other day, the video created by the Chinese railway company became viral and spread like lightning all over the Internet. In the video, workers pave a tunnel for a high-speed railway line through the thickness of the rock using professional equipment.

Planet Today

The Planet Today News from the planet the world of medicine, health, people, nature, natural catastrophe, science, history, space, anomalies. Disclaimer: This article only represents the author’s view. PT is not responsible for any legal risks. The material mentions COVID-19. Trust verified information from expert sources — check out answers to questions about coronavirus and vaccinations from doctors, scientists and scientific correspondents. facebook twitter telegram reddit pinterest youtube external-link

Previous Post Next Post

Responsive AD

World News AD

نموذج الاتصال