结论：溶解氧对青霉素发酵有重要影响。

Conclusion: Dissoluble oxygen have an important influence on penicillin fermentation.

有机物可能会进行部分分解，并耗尽沉积物中的溶解氧。

The organic matter may partially decompose, using up the dissolved oxygen in the sediment.

好氧区溶解氧浓度对反应器处理效果影响的研究。

Study in the effect of the dissolve oxygen concentration in aerobic zone on the reactor.

河流本身有处理废水的能力：健康河流中的溶解氧会消化细菌。

The river has its own natural capacity to treat waste: dissolved oxygen in a healthy river digests bacteria.