The drain pipes to be installed from the boiler flat and hot water well flat tobilge well for leading the waste oil water.
排放阀应装在从锅炉底和热水井底到污水井用于导废油废水。
2
Corrosion on Aluminum vessels is also generally in the form of localized pitting to the hull plate, rudders, bilge keels and particularly in way of weld seams.
铝制船舶上的腐蚀的通常形式是船体钢板、船舵、船底龙骨上的局部点状腐蚀，特别是在焊缝方面。
3
Clean the bilge well (channel) to ensure smoothly.