A new kind of formate/positivc-charged polyglycol drilling fluid system has been developed making full use of the coordinated effect of formate and positive-charged polyglycol.是什么意思_A new kind of formate/positivc-charged polyglycol drilling fluid system has been developed making full use of the coordinated effect of formate and positive-charged polyglycol.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句