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。
Therefore it is significant to find a simple method to describe the distribution of potential and current density under the cathodic protection.
在造船和修船的过程中由于电焊机和被焊件之间的连接不当，造成了电流对船体的腐蚀，严重时可能造成船体穿孔。
During the ship building and repairing, the electrical current will cause electrical corrosion to the hull of ship because of the unsuitable connection between the welding machine and welded parts.
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