The sacrificial anode cathodic protection features no power source, simple management and even current distribution. It is well received especially on special shaped structure.
牺牲阳极法阴极保护因其不需电源、管理简单、电流分布均匀，特别是对于形状特殊的构筑物。
Therefore it is significant to find a simple method to describe the distribution of potential and current density under the cathodic protection.
由此可见，寻找一种能满足工程要求的简单方法来求解船体的保护电位及电流密度分布问题具有重要意义。
The 2-d finite element method was an effective method to calculate the potential and current density distribution of cathodic protection fields.
有限元法已被证明是计算阴极保护场中电位、电流密度分布的有效方法。
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