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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The movable parallel robot device adopts that each branch can rotate relatively to the movable platform, and the lower end of the branch is controlled in the preset plane to move.

本发明所提供的移动并联机器人装置，采用了每一分支相对所述动平台可旋转，且所述分支的下端受控在一预定平面内移动。

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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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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