Studying the distribution of oxygen demand over the aeration tank a design concept of sectional control of the DO concentration was proposed on the basis of oxygen transfer in wastewater.是什么意思_Studying the distribution of oxygen demand over the aeration tank a design concept of sectional control of the DO concentration was proposed on the basis of oxygen transfer in wastewater.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句