Evolution of a seafloor massive sulfide deposit on axial volcanic ridges: a case study of the Duanqiao hydrothermal field, Southwest Indian Ridge by Weifang Yang, Chunhui Tao, Chunhui Tao, Shili Liao, Huichao Zhang, Huichao Zhang, Chuanwei Zhu, Wei Li, Guoyin Zhang, Xuefeng Wang, Lisheng Wang

Subjects: “…sulfide drill core…”
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FRACTURE CHARACTERS OF SURFACE CRACK IN THE INNER UPSET TRANSITIONAL SECTION OF DRILL PIPE by ZHAO GuangHui, ZHAO Li, TANG Song, LI Ju

Subjects: “…Drill pipe…”
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Prospects of "Slate Revolution" and Problem of Power Industry of China by M. Scryabina

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Bit selection method based on the rock drillability characteristics and principal component analysis of rock-breaking indicators by Yang Hu, Xian Xinlong, Zhou Penggao, Li Zhen, Wei Ruihua, Liang Junqiao, Xiong Shilong

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STUDY OF SPECIAL CONNECTION PERFORMANCE ON 88.9 MM DRILL STRING IN SLIM HOLE DRILLING by KUANG YuChun, WANG HongJun, LIU JianXun, LIN Hai

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