Discussion on the relocation and construction of liupu harbor beacon

Port wharf is the home for ships to stay.In order to facilitate ships to find the way home,light piles marking the left and right limits are built on both sides of the port wharf approach channel to guide and assist navigation.With the change of time and the need of economic development,some ports have been relocated or abandoned,and the navigational AIDS of lamp piles built for a long time have been greatly reduced,which have less or even cannot play …查看全部>>