1. The structural stresses of tank were calculated with the eight_dot limited element.Two undetermined factors for influencing structural failure,e.g.randomness and fuzzyness,were taken into account.
   并采用8节点等参元有限元法计算了储罐结构应力,考虑了影响结构失效的两个不确定性因素:随机性和模糊性。

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