Naked-eye 3D video: bullet trains ready for Spring Festival travel

Naked-eye 3D video: bullet trains are under maintenance in south China's Nanning for the Spring Festival travel rush.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline