The results showed that outflow can reach second level criterion of state, if 1/3 of existing aeration pond was converted to anoxic zone with DO concentration of 0.1mg/L,and the inner cycle mixed liquid rate of 100%.是什么意思_The results showed that outflow can reach second level criterion of state, if 1/3 of existing aeration pond was converted to anoxic zone with DO concentration of 0.1mg/L,and the inner cycle mixed liquid rate of 100%.在线翻译_英语_读音_用法_例句