By forming a thin film around the drill bit,drill assembly,thus preventing the balling of the drill bit and drill pipe,the ROP accelerators rendered the mud lubricity and incre...是什么意思_By forming a thin film around the drill bit,drill assembly,thus preventing the balling of the drill bit and drill pipe,the ROP accelerators rendered the mud lubricity and incre...在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句