引入序列可膨胀空间的概念，给出了它的一些性质，并且证明完备映射保持序列可膨胀性。

We introduce the concept of sequentially expandable Spaces, explain some their characteristics and show that perfect mappings preserve sequentially expandable Spaces.

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本文将蚁群算法引入序列比对，并对基于蚁群算法的双序列比对和多序列比对进行了研究。

This thesis mainly focuses on the study of double sequence alignment and multiple sequence alignment based on ant colony algorithm.

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并且，局部搜索引入序列二次规划策略（SQP），分步求解出升降舵偏角，油门设置与迎角初始值。

Furthermore, sequential quadratic programming (SQP) is introduced so as to accelerate the local optimum. Attacking angle, elevator deflection and throttle setting are obtained by steps.

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