At least one of the at least one cathode (3) and anode (4) comprises a coating of nanoparticles (5) of a second metallic material.

所述至少一个阴极(3)和阳极(4)的至少一个包括第二金属材料的纳米颗粒涂层(5)。

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This paper introduces the working principle of cathode protection in underground metallic pipe, expounds the essential of technique and constructed method .

介绍了埋地管线的阴极保护原理，阐述了埋地管道的阴极保护方法和牺牲阳极保护法选用及布点的技术要求。

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