Through the centralized sampling and analysis all over Dianchi Lake, the spatial variation rule of five days biochemical oxygendemand (BOD5 ) and permenganate index of oxygen demand (CODMn) in Dianchi Lake waters were revealed.是什么意思_Through the centralized sampling and analysis all over Dianchi Lake, the spatial variation rule of five days biochemical oxygendemand (BOD5 ) and permenganate index of oxygen demand (CODMn) in Dianchi Lake waters were revealed.在线翻译_英语_读音_用法_例句