For a truss with more than one redundant bar, more than one release will be required to obtain the primary frame .

 
  • 對于有一個(gè)以上多余桿的桁架要得到基本體系,就要放松一個(gè)以上的約束。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan