短語(yǔ)詞組短語(yǔ)Dissolved Oxygen -DO 氧在水中的溶解dissolved oxygen do concentration 溶解氧濃度low dissolved oxygen do 低溶解氧DO Dissolved Oxygen 溶解存在的氧含量;溶氧儀;溶解氧的縮寫 返回 dissolved oxygen do