How are China's high-speed rail tracks laid? Watch this report from Ningxia, where a high-speed railway linking the region's capital with Xi'an, home of the Ter
2018-05-21 1
How are China's high-speed rail tracks laid? Watch this report from Ningxia, where a high-speed railway linking the region's capital with Xi'an, home of the Terracotta Warriors, is being constructed.
