Finally, the present problems of the borehole penetrating method are analyzed; and the improvement proposals are put forward.
最后分析钻孔触探法存在的问题，并提出改进建议。
The borehole penetrating method can rapidly and accurately test the uniaxial compressive strength (UCS) of coal and rock mass.
基于钻孔触探法原理，开发出小孔径井下煤岩体强度测定装置。
The borehole penetrating method can rapidly and accurately test the uniaxial compressive strength (UCS) of coal and rock mass.
基于钻孔触探法原理，开发出小孔径井下煤岩体强度测定装置。
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