As a result, the effects of geometric size of test piece on J-R curve un-der different degree of constraint are argued.
从而论证了不同约束条件下，试样的几何尺寸因素对其J阻力曲线变化趋势的影响规律。
Meanwhile, in order to discard some infeasible individuals, a new fitness function is given based on objective function and the degree of constraint violations.
同时为了抛弃部分不可行点，设计了一个新的适应度函数，其仅仅依赖于个体的不可行度和目标函数值。
A constraint is a restriction on the degree of freedom you have in providing a solution.
约束是对提供解决方案中的自由度的限制。
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