分析了黄陇煤田大佛寺井田金刚石单管和双管取心及绳索取心钻井技术应用效果；
The application result of diamond drilling techniques in Huanglong Coalfield is analyzed emphatically in the paper.
分析了黄陇煤田大佛寺井田金刚石单管和双管取心及绳索取心钻井技术应用效果；
The application result of diamond drilling techniques in Huanglong Coalfield is analyzed emphatically in the paper.
应用推荐