In the process of glutamic acid fermentation, dissolved oxygen level was one of the most important factors.
在谷氨酸发酵过程中，溶氧水平是影响发酵的重要因素之一。
The accumulation of lactic acid in lowly dissolved oxygen level fermenting liquor made the glucide quickly consumed, as a result, the conversion rate of glucose was on the low side.
低溶氧水平发酵液中乳酸的大量积累，耗糖快、最终糖酸转化率偏低。
The result of experiment shows that sludge bulking will take place at any level of organic loading as long as the value of dissolved oxygen(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。
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