1、弓字挂板
... 一字挂板 single bar 弓字挂板 bridge bar 十字挂板 cross bar ...
bridge reinforcing bar桥梁钢筋
bus bar bridge母线桥
Bidwell Bar Bridge比德维尔大桥
tied bar arch bridge系杆拱桥
Bar or Bridge送上输送架
low-voltage bus-bar bridge低压母线桥
Steel truss-arch tied-bar beam bridge钢桁拱系杆梁桥