The results show that maintainning pH from 8.5 to 9.5,stir specd from 100 r/min to 120 r/min and keeping up the quantity of flocculation from 9.0 mg/L to 10.5 mg/L can improve the rate of removal heavy mental ions.是什么意思_The results show that maintainning pH from 8.5 to 9.5,stir specd from 100 r/min to 120 r/min and keeping up the quantity of flocculation from 9.0 mg/L to 10.5 mg/L can improve the rate of removal heavy mental ions.在线翻译_英语_读音_用法_例句