在长江上筑起三峡大坝后,隔断了长江的航行通道。大坝上、下游100多米的落差,使得船行三峡必须借助于船闸或升船机。布置在三峡工程长江左岸的永久船闸预定于2003年6月通航。目前船闸的土建和金属结构安装已基本完成,即将进入调试阶段。 After building the Three Gorges Dam on the Yangtze River, the Yangtze River’s navigation passage was cut off. The drop of more than 100 meters upstream and downstream of the dam makes it necessary for the Three Gorges of the ship to use the lock or lift. The permanent ship locks arranged on the left bank of the Three Gorges Project on the Yangtze River are scheduled to be opened in June 2003. At present, the civil and metal structure installation of the shiplock has basically been completed and is about to enter the commissioning stage.