In addition, inside structure of ballastwatertank is very complex, shield effect to protective current also becomes a key problem in cathodic protection design.
另外压载水舱内部结构复杂，“屏蔽效应”对保护电流分布的影响也成为阴极保护设计中的关键问题。
2
The use of sea water in ballastwatertank of sea-going ships causes the corrosion of ship hull plates and the water leak from the corroded holes at welding seams.
海船压载舱使用海水压载，引起船体板的腐蚀，焊缝处会产生蚀孔漏水。
3
Fore peak tank fresh watertankballast tank emergency generator fuel oil tank use sounding pipe sludge tank use short sounding pipe.