露天矿工艺系统可靠性对露天矿的主要技术经济指标有很大影响，特别是采用连续或半连续开采工艺时更是如此。
The reliability of mining technological systems has a notable impact on main economic and technical indices. especially when continuous or semi-continuous mining system is employed.
川中地区小口径连续油管携自由水采气工艺技术，首次成功地在水平井中先导试验，提高了低产气井开采效果。
Technique of free- water- carrying gas production with slim-hole coiled tubing was first successfully used in pilot - testing of horizontal well in middle region of Sichuan.
川中地区小口径连续油管携自由水采气工艺技术，首次成功地在水平井中先导试验，提高了低产气井开采效果。
Technique of free- water- carrying gas production with slim-hole coiled tubing was first successfully used in pilot - testing of horizontal well in middle region of Sichuan.
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