南京地铁二号线新街口站拟采用便桥疏解交通，便桥结构采用“321”装配式公路钢桥。

Xinjiekou station of Nanjing No. 2 metro will solve the problem of traffic by the temporary bridge, whose framework is a "321" assembled steel highway bridge.

youdao

南京地铁二号线新街口站拟采用便桥疏解交通，便桥结构采用“321”装配式公路钢桥。

Xinjiekou station of Nanjing No. 2 metro will solve the problem of traffic by the temporary bridge, whose framework is a "321" assembled steel highway bridge.

youdao