摘要
Baodai Bridge(precious belt bridge)is the longest stone bridge over the Beijing- Hangzhou Grand Canal,the world’s longest ancient canal.Located 7.5 kilometers southeast of Suzhou City,this multi-arch stone bridge was first built between 816 and 819 AD during the Tang Dynasty.The Yangtze River Delta,where Suzhou is located。
Baodai Bridge （precious belt bridge） is the longest stone bridge over the Beijing- Hangzhou Grand Canal, the world＇s longestancient canal. Located 7.5 kilometers southeast of Suzhou City, this multi-arch stone bridge was first built between 816 and 819 AD during the Tang Dynasty. The Yangtze River Delta, where Suzhou
