短语词组短语suspended d truss 悬式构架suspended stiffening truss 悬式加劲桁架;悬索加劲衍架suspended truss WESTBANK 悬桁架suspended stiffening steel truss bridge 加劲弦钢桁梁桥mega -truss-suspended steel structure 巨型桁架悬挂钢结构 返回 suspended truss