Make a analyzing about the situation of floating roof tank and the problem lying in changing the floating roof tank to the covered floating roof tank.
对拱顶罐的状况及拱顶罐改为内浮顶罐存在的问题进行了分析，指出储罐的垂直度和圆度是内浮顶改造的关键。
Make a analyzing about the situation of floating roof tank and the problem lying in changing the floating roof tank to the covered floating roof tank.
对拱顶罐的状况及拱顶罐改为内浮顶罐存在的问题进行了分析，指出储罐的垂直度和圆度是内浮顶改造的关键。
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