pontoon
The pontoon, also known as the bridge, was first seen in the Chinese Zhou Dynasty, is a simple bridge, through the link can be floating on the water objects to temporarily solve cross-strait traffic problems, common in military use. First boat boat tied with a rope in series, and then tile on the tile, to facilitate cross-strait passage, which is later the prototype of the bridge. Now the world's most modern pontoon bridge is the dream dance bridge in Osaka, Japan. ...