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Analysis on the Problems of the All Hydraulic Dynamic Head Drill and the Suggestions for the Improvement
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No.4 Geological Brigade, North China Geological Exploration Bureau,No.4 Geological Brigade, North China Geological Exploration Bureau

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    Abstract:

    Analysis is made on the problems in the construction with all hydraulic dynamic head drill while affirming its advantages, the treatment measures and suggestions for improvement were put forward.

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History
  • Received:May 28,2013
  • Revised:December 17,2013
  • Adopted:January 04,2014
  • Online: February 26,2014
  • Published:
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