A New Method for Measuring and Grading of PDC Bit Rock Drillability
Yang Yingxin, Gao Xiang, Chen Hong, Chen Haijun, Chen Lian
Chinese Journal of Underground Space and Engineering ›› 2019, Vol. 15 ›› Issue (3) : 811-819.
A New Method for Measuring and Grading of PDC Bit Rock Drillability
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