Home > Archive>Volume 31, Issue 8, 2004 >44-44
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Hole Opener with Planet Reduction Gear Used in Horizontal Rig
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P634.42

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    Abstract:

    分析了目前水平钻机扩孔钻进存在的一些缺点，介绍了所设计的行星减速式扩孔器的结构特点及其优势。

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History
  • Received:July 21,2004
  • Revised:July 21,2004
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