"swing bridge"的定义和意义

What is a "swing bridge"?

A swing bridge is a type of movable bridge that rotates around a fixed point to allow boats and ships to pass through. This design typically features a section of the bridge that swings open to create a clear passage for water traffic. Swing bridges are often found in locations where both road and river traffic are present, such as canals or harbors. When a boat approaches, the bridge can be swung open, and once the vessel has passed, it can be closed again for vehicles and pedestrians. This type of bridge is known for its ability to manage different transportation needs efficiently.