Global Journal of Advanced Engineering Technologies and Sciences

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ISSN 2349-0292
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TABLE OF CONTENT (GJAETS, 4(8):August -2017)
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INFLUENCE OF COAL ROCK HARDNESS AND CONFINING PRESSURE ON SPECIFIC ENERGY CONSUMPTION OF PDC BIT DURING GAS EXTRACTION BOREHOLE.
Shifeng Wang, Xiaoming Han*, Chenxu Luo, Qiangqiang Zhang, Jialiang Li, Detuo Chen

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