At the top flange there would be enough slack so that no relative twist of any significant magnitude would be introduced into the girder web.

 
  • 在上翼緣處有足夠的松動(dòng),因而在主梁腹板上并不會(huì )引起很大的相對扭轉。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan