The results show that combined coagulated sludge by polyaluminium chloride plus polyacrylamide has better digestibility than excess sludge or primary sludge coagulated only by polyaluminium chloride.是什么意思_The results show that combined coagulated sludge by polyaluminium chloride plus polyacrylamide has better digestibility than excess sludge or primary sludge coagulated only by polyaluminium chloride.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句