A current cycle iterative learning algorism is presented in this paper for the periodic position relevant nonlinear disturbance in the constant speed state of turntable.

本文针对高精度转台恒速工作状态时存在的位置相关周期非线性扰动，提出了一种闭环迭代学习算法。

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A current cycle iterative learning algorism is presented for the periodic position relevant nonlinear disturbance in the constant speed state of turntable.

针对高精度转台恒速工作状态时存在的位置相关周期非线性扰动，提出了一种闭环迭代学习算法。

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Because the dry wind-blown sand is sensitive to disturbance, the methods for measuring density in current regulations are not appropriate to it.

干燥的风积沙对扰动很敏感，现行有关规程中的密度测定方法对其均不太适合。

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