overhead crossing 架空交叉 ; [电] 架空线网交叉器 ; 立体交 ; 立体交叉点

large crossing overhead project 大跨越工程

overhead crossing detail 空中交叉

truss overhead crossing 桁架跨越

pipeline overhead crossing 管道跨越

type of overhead crossing 线岔形式

overhead d crossing 架空交叉

overhead line crossing 线叉线夹

overhead junction crossing 架空线网并线器