The preset errors at stable condition and anti-disturbance performance of the close-loop control system are analyzed and researched through the introduction of its application on certain device.

结合闭环控制系统在某设备上的应用，研究分析该控制系统的给定稳态误差及其抗干扰能力。

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A force exerted by media on detecting device balances pre-tightening force of preset spring 3.

介质在检测元件上产生一个作用力与预设弹簧(3)预紧力相平衡。

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Said control device is coupled to the inducing device to regulate the pixel value based on a preset chart to reach the shading compensation effect to said 2-d array inducing elements.

该控制装置是耦合至该感应装置，依据一预定的表格，以对该二维阵列的像素值进行调整，以便达到对该二维阵列的感应元件的遮光补偿效应。

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Traditional security does this with a separate device, usually a card or a dongle, that is preset at the home office.

FORBES: Google's Random Security