SHI Hai-qi. Measuring Probe of Directional Drilling in Coal Mine Underground[J]. Safety in Coal Mines, 2013, 44(3): 106-108.
    Citation: SHI Hai-qi. Measuring Probe of Directional Drilling in Coal Mine Underground[J]. Safety in Coal Mines, 2013, 44(3): 106-108.

    Measuring Probe of Directional Drilling in Coal Mine Underground

    • Through analyzing key hardware composition and principle of measuring probe in directional drilling system, the paper introduces working principle of the measuring probe in measurement while drilling system and the measuring probe plays an important role in directional drilling technology.
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