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METHOD OF DRIVING WORKINGS IN THE VICINITY OF OUTBURST-HAZARDOUS ROCK
METHOD OF DRIVING WORKINGS IN THE VICINITY OF OUTBURST-HAZARDOUS ROCK
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机译:突出危险岩附近作业的方法
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摘要
the way of mine near выбросоопасных breeds, including the drilling face of шпуров and взрьгоание in зар дов explosives, distinguishes с whatin order to повьшени efficacy and safety mining by устране
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