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"Down-The-Hole hammer drilling system driven by a tubular reciprocating ..."
Shujun Zhang et al. (2012)
- Shujun Zhang, Lars E. Norum, Robert Nilssen, Robert D. Lorenz:
Down-The-Hole hammer drilling system driven by a tubular reciprocating translational motion permanent magnet synchronous motor. ISIE 2012: 647-651
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