拍摄照片的是大熊湖太阳天文台新望远镜，采用自适应光学技术配件以便校正大气扰动误差，调节信号畸变。
The telescope that took the picture is know as the New Solar telescope which USES adaptive optics, parts that change to adapt to disturbances in the atmosphere and correct distortions in the signals.
王安义，保铮，张林让。阵列估计误差和扰动误差引起方向图畸变的校正。西安电子科技大学学报，26（1999）5，614-618。
Anyi Wang, Zheng Bao, and Linrang Wang. Remedies of the estimation errors and perturbation errors. Journal of Xidian University, 26(1999)5,614-618 (in Chinese).
电机控制模型中的建模误差，以及系统运行中的参数漂移，诸如电机的定、转子电阻随着温度发生变化，相当于对所研究的控制系统加入了扰动。
The modelling inaccuracy and parameter drift in motor control, such as the stator and rotor resistance shift with temperature, act as the disturbance in the control system.
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