The bridge crosses the river in a single span.
河上的桥为单跨桥。
The single span girders are linked with one another and freely supported on top of rigid piers.
桥的邻跨梁相互铰连并自由置放在桥墩的顶面上。
Keep the structure of each patch simple (single span surfacing) to assure they are easy to control!
保持结构简单，每个补丁(单跨堆焊)，以确保它们很容易控制！
应用推荐