The results of plugging test showed that water shutoff agent HY had good plugging efficiency for different permeability core,plugging rate was more than 99.90%,and the core break- through pressure grade was higher than 18.0 MPa.是什么意思_The results of plugging test showed that water shutoff agent HY had good plugging efficiency for different permeability core,plugging rate was more than 99.90%,and the core break- through pressure grade was higher than 18.0 MPa.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句