Nitrification and heterotrophic bacteria that was screened and separated from digestion sludge is used to treat schoolyarddomesticsewage.是什么意思_Nitrification and heterotrophic bacteria that was screened and separated from digestion sludge is used to treat schoolyarddomesticsewage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句