有围栏隔开或保围的建筑物或建筑群，尤指住宅或居民区。

Compound: a building or buildings, especially a residence or group of residences, set off and enclosed by a barrier.

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此时问题已转化为多个簇的单模态问题，在各个簇中再利用保收敛微粒群优化器获得每个簇的最优解。

So multimodal problem has turn into unimodal problem in some clusters in which the optimal solution is guaranteedly located through the guaranteed convergence particle swarm optimizer.

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作为应用又确定了保群逆线性映射形式。

As applications, we also determine the forms of linear maps preserving group inverses.

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