Cleaner production process of the alcohol enterprise is a complex feedback system which involves the improvement of process, the reuse of circulating cooling water, sludge and so on.

酒精企业的清洁生产涉及到工艺流程的改进、循环冷却水、糟泥等的资源化利用等各方面，是一个复杂的反馈系统。

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Knowledge work is inherently complex and it is the use of the feedback loop that helps manage and mitigate the effects of things like Murphy's Law and Parkinson's Law.

知识工作本来就很复杂，其中用到反馈循环辅助管理，并去掉了像墨菲定律和帕金森定论之类东西的影响。

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Complex and simple form layouts can provide equally great feedback and help users get back on track, as the following screenshots of SEOmoz and MailChimp show.

复杂和简单的表单布局都可以提供很棒的反馈，并能让用户回到正轨，正如下述SEOmoz和MailChimp的截屏所显示的那样。

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GarageBand.com's complex technology ranks songs based on the community feedback.

FORBES: Podcasting Profits

Real-time 3D body motion data enables the development of apps that can recognize and classify complex motions such as sports techniques by digitizing your exact movements for immediate feedback and live sharing.

ENGADGET: Xsens teases wearable 3D body sensors that won't cost, will track an arm and a leg (video)

Complex systems such as climate and the financial markets have both positive and negative feedback.

FORBES: Chaos Theory, Financial Markets, and Global Weirding