埋地钢质管道电化学阴极保护是一项成熟技术，但在硫酸工业中应用尚不多。
The electrochemical cathode protection of the buried steel pipelines is a mature technology, but it has not been widely used in the sulfuric acid industry.
论述了金属的电化学腐蚀和外加电流阴极保护原理。
Electrochemical corrosion of metal and principle of the applied current cathodic protection are expounded.
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