arched girder with intermediate tie的意思|示意
美 / /
英 / /
拱形主梁，中间系带
arched girder with intermediate tie的网络常见释义
有中间系杆的拱形桁轲 有中间系杆的拱形桁轲 arched girder with intermediate tie 由三角形组成的 triangulate ..