A major breakthrough: A new tunnel has been drilled through in Beijing for a high-speed railway linking two host cities of 2022 Winter Olympics.
#HighSpeedRailway
Негізгі бет New tunnel drilled through on Beijing-Zhangjiakou high-speed railway
A major breakthrough: A new tunnel has been drilled through in Beijing for a high-speed railway linking two host cities of 2022 Winter Olympics.
#HighSpeedRailway
Пікірлер: 4