Line 7 of Chengdu metro system begins trail operation
2017-12-11 13:45:43
Summary:Line 7 of Chengdu metro system begins trail operation
Passengers take pictures on a train running on Line 7 of the metro system in Chengdu, capital of southwest China's Sichuan Province, Dec. 6, 2017. Line 7 of Chengdu metro system began its trail operation here Wednesday.
Key Words:Subway,Project