A bullet train traveling between Hangzhou and Nanjing parks at the Hangzhou East Raiway Station in Hangzhou, capital of east China's Zhejiang Province, July 1, 2013. The Nanjing-Hangzhou-Ningbo high-speed railway that stretches across east China's Yangtze River Delta began officially put into operation on July 1. The new high-speed railway is expected to boost the region's economy and foster the growth of tourism in the three cities it links. Photo: Xinhua

A bullet train traveling between Hangzhou and Nanjing runs on the railway in Huzhou in east China's Zhejiang Province, July 1, 2013. The Nanjing-Hangzhou-Ningbo high-speed railway that stretches across east China's Yangtze River Delta began officially put into operation on July 1. The new high-speed railway is expected to boost the region's economy and foster the growth of tourism in the three cities it links. Photo: Xinhua

A bullet train traveling between Hangzhou and Nanjing enters Deqing Railway Station in east China's Zhejiang Province, July 1, 2013. The Nanjing-Hangzhou-Ningbo high-speed railway that stretches across east China's Yangtze River Delta began officially put into operation on July 1. The new high-speed railway is expected to boost the region's economy and foster the growth of tourism in the three cities it links. Photo: Xinhua

A crew member of the bullet train traveling between Nanjing and Ningbo welcomes passengers at Nanjing South Railway Station in Nanjing, east China's Jiangsu Province, July 1, 2013. The Nanjing-Hangzhou-Ningbo high-speed railway that stretches across east China's Yangtze River Delta began officially put into operation on July 1. The new high-speed railway is expected to boost the region's economy and foster the growth of tourism in the three cities it links. Photo: Xinhua