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去年苏联地质专家考洛巴克夫在某地质勘探地区指导地质勘探的时候,为了更精确的掌握每一个斜钻孔的自然弯曲度,并了解钻井内的情况,曾经介绍了一个用很简便的方法制
Last year, the Soviet geological expert Kollobakov guided geological exploration in a geological exploration area. In order to get a more accurate grasp of the natural curvature of each borehole and to understand the situation inside the borehole, a simple and convenient method was introduced system