The use of prefabricated structural elements is an integral part of many accelerated bridge construction (ABC) efforts. The connection of these prefabricated elements to the rest of the structural ...
“There’s a lot of moving parts inside of a bridge ... system—it’s a hydraulically operated bridge, but there are electrical components that drive the pumps to move the hydraulic ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果