Builders operate machine to put up a box-girder bridge at the construction site of the Wuhu section of the intercity high-speed railway from Nanjing to Anqing, east China's Anhui Province, March 2, 2011.
Builders operate machine to put up a box-girder bridge at the construction site of the Wuhu section of the intercity high-speed railway from Nanjing to Anqing, east China's Anhui Province, March 2, 2011.
