On the analysis of the scum and sullage, the mechanism of pollutant removal was obtained, which lays a sound ground for deeper study on this method.是什么意思_On the analysis of the scum and sullage, the mechanism of pollutant removal was obtained, which lays a sound ground for deeper study on this method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句