• 对于连续导向钻具组合来说,由于螺杆存在,使得任何一个瞬态受力变形都有独特特征

    For a continuous steering drill tool assembly, because there is crew in it, any transient forced deformation has its special characters.

    youdao

  • 对于连续导向钻具组合来说,由于螺杆存在,使得任何一个瞬态受力变形都有独特特征

    For a continuous steering drill tool assembly, because there is crew in it, any transient forced deformation has its special characters.

    youdao

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