How to build a high-speed rail tunnel
2018-01-04 11:12:00

A 3-minute video on how to build a high-speed rail tunnel has gone viral on Chinese social media. The how-to was released by the China Railway Construction Corporation Limited (CRCC), a state-owned enterprise that ranked 58th among the Fortune Global 500 in 2017.

Source:CGTN Editor:Hiram
在线翻译