各种各样新方法、新技术的提出为解决非平稳问题注入了新的活力。

Many technologies have appeared to meet the need of processing non-stationary signal.

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研究了一类反射跟踪模型平稳问题，在满足一定条件下找出了其最佳控制和最佳控制区域。

A stationary problem about the reflected follower is studied. Under some necessary conditions its optimal controls and optimal control area are obtained.

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当恢复是平稳且直接时，需要调整的问题对软件开发项目的一般成果几乎没有影响。

When recovery is smooth and immediate, the problem that required adjustment has little impact on the general outcome of the software development project.

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And she would intercept them as they came across the rickety bridge, or the low bridge, and she would ask them a few questions and ?" conclude with, "Can you write me a story? " You would help me out with my experiment if you'd just write a little story right now."

她会拦住他们,当他们分别横过摇晃的桥和低矮平稳的桥时，她会问一些问题,最后一个问题是“能为我写一个故事吗“,我将解决实验中遇到的瓶颈,如果你能立即给我写一个小故事“

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