文章分析了现行立式园柱形金属油罐结构上的缺陷，提出了一种由双重罐底及附属结构构成二次密闭系统，具有新型结构的立式钢油罐。
After analysing the defectS Of the structure of vertical cylindrical metallic tank in operation , this article puts forward a new steel structural vertical oil tank which has double bob bottoms and double hermetic system .
双重底