当金属的一部分与溶解氧浓度相对较低的水接触，而邻近部分与溶解氧浓度高的水接触，则前一部分为阳极。
When a part of the metal is in contact with water relatively low in dissolved oxygen, it is, of course, anodic to adjoining areas in contact with water higher in dissolved oxygen.
水盾草的生物量与水体透明度呈显著正相关，生物量和优势度与溶解氧呈显著负相关，金鱼藻和黑藻与水质间没有呈现显著的相关性。
The biomass of fanwort has significantly positive correlation with transparency, and its biomass and dominance has markedly negative relationship with dissolved oxygen in the water.
在池塘氧耗因子中，水呼吸是最大的溶解氧消耗者，占水柱总耗氧量的70 %以上；
Among the oxygen consuming factors, AR was the largest oxygen consumer, which made up more than 70% of the total oxygen consumption of water column;
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