When PAC and natural mineral coagulant aid A is best complex used, the removal rent of turbidity, chlorophyll a, permanganate is 94.7%, 69.1% and 59.9%, but floe volume decreases 50%.是什么意思_When PAC and natural mineral coagulant aid A is best complex used, the removal rent of turbidity, chlorophyll a, permanganate is 94.7%, 69.1% and 59.9%, but floe volume decreases 50%.在线翻译_英语_读音_用法_例句