shirt oil bottom shell 裙边油底壳
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.
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。
Cleanout hole series can be set at the cornet from the bottom tank shell course to the bottom of the heavy oil storage tank for cleaning and draining during maintenance.
清扫孔装于重质油罐底部、清扫孔油罐可放出污水扫除内污泥。
The stress of shell-to-bottom fillet welds is one of the most important factors of the safety of large oil tanks.
大角焊缝的应力水平是影响大型油罐安全的重要因素之一。
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