传统钻井工艺与空气潜孔锤钻进综合技术在西南缺水地区水井钻探中的应用
전통찬정공예여공기잠공추찬진종합기술재서남결수지구수정찬탐중적응용
Application of Traditional Drilling and DTH Hammer Drilling Technology in Water Drilling in Southwest Area
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