Application of Drilling in Tunnel Technology in Coal Prospecting within Mine

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doi:10.3969/j.issn.1672-7428.2003.z1.076

2003 No. z1

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Application of Drilling in Tunnel Technology in Coal Prospecting within Mine[J]. DRILLING ENGINEERING, 2003, (z1): 219-220. doi: 10.3969/j.issn.1672-7428.2003.z1.076

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Application of Drilling in Tunnel Technology in Coal Prospecting within Mine[J]. DRILLING ENGINEERING, 2003, (z1): 219-220. doi: 10.3969/j.issn.1672-7428.2003.z1.076