为了对压力容器的缺陷进行模糊评定，需要为通用失效评定曲线组成的安全评定区域进行梯度分区。
To fuzzy assess to defect (s) of pressure vessel, it is necessary that security area, that is structure by the currency failure assessment curve, is divided on gradient.
在给定裂纹尺寸与载荷条件下，利用断裂评定程序对一裂纹缺陷进行了评定，得到了海底管线失效评定曲线(FAD图)。
Under given crack dimensions and load condition, to appraise to cracks defects with fracture appraisal program and obtained submarine pipeline failure appraisal diagram (FAD).
在给定裂纹尺寸与载荷条件下，利用断裂评定程序对一裂纹缺陷进行了评定，得到了海底管线失效评定曲线(FAD图)。
Under given crack dimensions and load condition, to appraise to cracks defects with fracture appraisal program and obtained submarine pipeline failure appraisal diagram (FAD).
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