Technicians check the various electrical equipment for Hangzhou-Changsha high-speed railway at an traction substation in Yiwu City, east China's Zhejiang Province, Aug. 3, 2014. The 933-kilometer high-speed railway linking Hangzhou, capital of Zhejiang, and Changsha, capital of central China's Hunan Province, will be put into service at the end of this year. (Xinhua/Tan Jin)
A test train runs in the Yiwu section of Hangzhou-Changsha high-speed railway in Yiwu City, east China's Zhejiang Province, July 20, 2014.
Policemen check the monitoring equipment in the Yiwu section of Hangzhou-Changsha high-speed railway in Yiwu City, east China's Zhejiang Province, July 31, 2014.
A bullet train runs for test in the Yiwu section of Hangzhou-Changsha high-speed railway in Yiwu City, east China's Zhejiang Province, July 31, 2014.
Citizens walk in rain in Taiyuan, capital of north China's Shanxi Province, Aug. 4, 2014. Heavy rainfall hit the city on Monday. (Xinhua/Fan Minda
A girl poses for a photo with an elephant sculpture at Pacific Place in Hong Kong on August 2, 2014. The Elephant Parade exhibition is held here from August 1 to September 9. Elephant Parade is the world's largest open air art exhibition of decorated elephant statues that seeks to attract public awareness and support for Asian elephant conservation. (Photo: ECNS.cn/ Tan Daming)
An elephant sculpture is seen at Pacific Place in Hong Kong on August 2, 2014.
Volunteers for protocol walk in a line during the volunteer training for the 2nd Summer Youth Olympic Games at Longjiang Gymnasium in Nanjing, China on Aug. 4, 2014. Volunteers for protocol, spectator services, broadcast and material management are receiving intensified practical training for the upcoming Youth Olympic Games in Nanjing. (Xinhua/Sun Can)
A volunteer stands straight and sweats during the volunteer training for the 2nd Summer Youth Olympic Games at Longjiang Gymnasium in Nanjing, China on Aug. 4, 2014. (Xinhua/Sun Can)