opening of mines 中文意思是什麼
opening of mines
解釋
礦體開發-
This paper unite surveys works in dong gua shan mines construction under 1 km place researching four key technology in mine s survey, they are construction survey technology in km deep mine, km deep mine s connected survey technology, km deep level survey technology of longer distances link up in many heads opening and basic control survey technology, km mine s extension when the production must go on accurate fixed position survey technology, and all obtained success
本文結合在千米以下冬瓜山銅礦建設時期的測量工作，研究了深部礦山測量四個方面的關鍵技術，即千米深井施工測量技術、千米深井聯系測量技術、千米深井中段多頭開拓長距離貫通和基本控制測量技術、千米深井不停產延深精密定位測量技術，並取得了成功的效果。
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