Rail workers use cranes and construction vehicles to build the Xining-Golmud Second Line of the Qing-Tibet Railway on the Bayante Bridge, Huangyuan country, Xining city, Northwest China's Qinghai province on July 21, 2010. The line is expected to be completed by the end of 2010, ahead of the plan deadline by 21 months. It will be an electric railway with a cargo transportation capability of over 50 million tons a year and its passenger trains will attain speeds of up to 160 km/h. [Photo/Xinhua]