Experimental Study on Diamond Bit for Drilling in Gravel Stratum

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doi:10.3969/j.issn.1672-7428.2009.11.019

2009 No. 11

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Experimental Study on Diamond Bit for Drilling in Gravel Stratum[J]. DRILLING ENGINEERING, 2009, (11): 69-71. doi: 10.3969/j.issn.1672-7428.2009.11.019

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Experimental Study on Diamond Bit for Drilling in Gravel Stratum[J]. DRILLING ENGINEERING, 2009, (11): 69-71. doi: 10.3969/j.issn.1672-7428.2009.11.019