This paper puts forward oneself view for producing mechanism of differential aeration corrosion and talk about influence of metal corrosion potential due to the change of oxygen concentration.

本文就差异充气腐蚀产生机理提出自己的看法，并且谈到氧气浓度变化对金属腐蚀电位的影响。

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Severe corrosion, leading to pitting, is often caused by concentration cells, particularly where differences in dissolved-oxygen concentration occur.

特别在溶解氧浓度有差别的场合，浓差电池常引起严重腐蚀、导致孔蚀。

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Therefore, the mechanism of corrosion of metals in the soil is given in this paper, oxygen concentration and microbial corrosion of two types.

因此，本文明确给出了金属在土壤中腐蚀的机理，氧浓差和微生物两种腐蚀类型。

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