This paper put more emphases on the study of controlling of the total count of bacteria and the total coliform group by the combination of PPC and chloramine and by either of them.是什么意思_This paper put more emphases on the study of controlling of the total count of bacteria and the total coliform group by the combination of PPC and chloramine and by either of them.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句