this paper describes the condition of the damaged cargo gear pump used in chemical tanker, gives a new repairing technique.
文章描述了某轮双螺桿货油泵的损坏状况,具体分析了产生故障的原因,提供了相应修理方案。
the opening hatch cover method also not to be satisfied that using the warping head of cargo gear not through derrick boom open the hatch cover because using derrick boom is not safe.