The uncertainties of pressure vessel result in the randomness of local stress, local strain and fatigue life.
由于压力容器构件的不确定因素，造成了构件局部应力应变响应和疲劳寿命具有随机性。
2
The uncertainties result in the randomness of local stress, local strain and fatigue life.
这些不确定因素导致构件的局部应力应变响应和疲劳寿命响应具有随机性。
3
The proposed algorithm utilizes neighborhood knowledge to direct its local search procedure which can overcome the blindness or randomness introduced by meta-heuristics.