Approximate TN removal efficiency of 66.0% and SND percentage of 42.6% are achieved under optimized DO concentrations,increased by 13.8% and 24.3% than before DO optimization.是什么意思_Approximate TN removal efficiency of 66.0% and SND percentage of 42.6% are achieved under optimized DO concentrations,increased by 13.8% and 24.3% than before DO optimization.在线翻译_英语_读音_用法_例句