另外，本文还讨论了第二个问题，就是无限维线性系统在生成的紧扰动下的非指数稳定性。

Besides, our paper has discussed another problem, which is the non - exponential stability of infinite - dimensional linear systems under generating compact perturbation.

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利用函数单向s -粗集对偶，结合系统规律生成，提出了开环控制系统的扰动识别准则，并给出了开环控制系统扰动识别的结构图和具体实现过程。

Based on the dual function S-rough set and system law generation, disturb recognition criteria of the open-loop control is given.

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对于复杂的飞行任务，有必要生成二维紊流场模型，从而更准确地反映扰动情况。

It is necessary to build two dimensional turbulence model for the complex flight mission, thereby describing the true situation.

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