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在无产阶级文化大革命和批林批孔运动的推动下,我国的人造金刚石小口径钻探技术有了飞跃的发展,近年来,由郑州磨料磨具磨削研究所、西安煤田地质研究所、石家庄煤矿机械厂、湖南煤田勘探二队同四川矿业学院、辽宁、山东、陕西、贵州等煤田勘探公司(队)组成的“三结合”钻头研制小组的全体同志,在毛主席革命路线指引下,坚持“独立自主,
Under the impetus of the Great Proletarian Cultural Revolution and the campaign of criticizing Lin and Biao Kong, China’s small-diameter synthetic diamond drilling technology has made rapid progress. In recent years, the research and development of small-diameter synthetic diamond drilling technology has been carried out by Zhengzhou Institute of Abrasives Grinding, Xi’an Coalfield Geology Institute, Machinery Factory and Hunan Coalfield Exploration Team 2 All comrades of the “three combined” drill team formed by the coal mining academy of Sichuan Province, coalfield exploration company (team) of Liaoning, Shandong, Shaanxi and Guizhou, under the guidance of Chairman Mao’s revolutionary line, Independent,