RESEARCH ON CUTTINGS MIGRATION IN THE FLOW CORE ZONE AND VELOCITY GRADIENT ZONE OF ANNULAR SPACE IN DRILLING INCLINED HOLE AND HORIZONTAL HOLE是什么意思_RESEARCH ON CUTTINGS MIGRATION IN THE FLOW CORE ZONE AND VELOCITY GRADIENT ZONE OF ANNULAR SPACE IN DRILLING INCLINED HOLE AND HORIZONTAL HOLE在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句