带性能约束的航天舱布局问题可分解为有限多个子问题，每个子问题克服了关于优化变量的时断时续性。
Aircraft layout problem with performance constraints can be partitioned into finite subproblems, which overcome the on-off nature about optimal variables.
多约束环境下不规则多边形的优化布局具有一定的特殊性。
The optimal layout of irregular polygons under multi-restriction has specialties.
带平衡性约束的圆集在圆容器内的布局优化问题，属于NP困难问题。
The optimal layout problem of circle group in a circular container with performance constraints of equilibrium belong to NPhard problem.
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