There are no complicated mechanical and optical parts for reading fringe in the setup. The locations of the observation points are displayed automat ally by a two dimensional stepping controller.

该装置不需要复杂的读取条纹的光学及机械部件，操作方便，观察点位置由二维步进装置控制器自动显示。

youdao

One problem with this setup is that mechanical systems, while necessary to sort the vast amount of content being uploaded to YouTube and other video sharing sites every moment, are short on nuance.

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The movie's leisurely, elegant setup makes its action payoff seem, by contrast, particularly mechanical, cynical and grotesque.

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