论述了油品蒸发损耗产生的原因，提出了降低立式油罐蒸发损耗的措施。
The paper described the causes of the evaporation loss of oil product and countermeasure against the evaporation loss of oil product is proposed.
大型立式油罐t形角焊缝部位应力高，施工难度大，焊缝存在缺陷多，容易受到腐蚀，而且常被忽视。
For the T-fillet weld, there are high stress, difficult to weld, more defects and easy to be corroded in vertical oil tank, which is often neglected.
立式钢油罐强度破坏的重点区域在底圈罐壁，其作用的各变量因素具有较大的随机性，可靠性评价方法较为适用。
The most vulnerable area of the vertical steel oil tanks being destroyed is the bottom shell, because the variables acting on it are random, reliability analysis can be applied in assessment.
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