The Shiyang River Bridge in Yunnan is a simply-supported reinforced concrete girder bridge with six spans and two traffic lanes.

 
  • 摘要石羊江橋是一座6跨、簡(jiǎn)支鋼筋混凝土梁橋,雙車(chē)道。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan