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ARRANGEMENT FOR DRILLING WITH CONVEYING OF BROKEN ROCK IN FLUSHING AGENT STREAM
ARRANGEMENT FOR DRILLING WITH CONVEYING OF BROKEN ROCK IN FLUSHING AGENT STREAM
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机译:冲洗剂流中碎岩输送钻孔的布置
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摘要
the invention относитс to the mining industry. the purpose is to improve the effectiveness of treatment изобретени забо by предотвращени migration control agent in кольцевом space wells in услови
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