We decided that we should use the drilling for vertical inclinometer V15 as a trial to test the feasibility of the construction method.

 
  • 現決定將垂直測斜儀V15的鉆孔作為初次試驗,以測試該施工方法的可行性。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan