repairing welding connection
repairing welding connection
修复焊接连接
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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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.
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。
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