Deviation Measurement Technique in Large Diameter Ventilation Borehole
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P634.7

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    Abstract:

    介绍了在大直径钻孔中采用YT-1型压电陀螺测斜仪、CQ型光电多点连续测斜仪进行测斜的技术方法和应用效果。

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History
  • Received:June 24,2003
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