Increasing oxygen in order to maintain the higher dissolvedoxygen (DO) concentration in the water body is one of the main adjusting measures in this farming mode.
通过向养殖水体充氧，从而使水体中维持较高浓度的溶解氧，是该养殖模式水质管理的主要调控措施之一。
2
The result of experiment shows that sludge bulking will take place at any level of organic loading as long as the value of dissolvedoxygen(DO) changes correspondingly.
实验结果表明，在低、中、高负荷时，只要溶解氧发生变化，均有可能发生膨胀。
3
Dissolvedoxygen (DO) content is a key affective factor for the biological nitrogen removal by simultaneous nitrification and denitrification.