Renewing thinking of design work,improving layout of drift plane,changing the shape of cross section of the main room floor ,the overall design of central substation of main inhalation dewatering pump room in underground mine can be optimized.

 
  • 更新設計思路,改進(jìn)巷道平面布置方式,改變主要硐室底板橫截面形狀,可以?xún)?yōu)化地下礦山吸入式主排水泵房和中央變電所整體設計。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan