More sales, more algorithm-fueled recommendations, and the positive feedback loop kicked in.
一时间，网站的留言里好评如潮，销量因此进一步增加，这就带来了更多的好评，于是形成了一个正反馈。
Research suggests that happier people give more to charity, and that giving more makes people happier, creating a positive feedback loop, according to a 2009 paper from Harvard Business School.
2009年哈佛商学院的一篇论文说到，研究表明心情更愉悦的人会做更多的慈善，而给予更多则能让人们感到更开心，从而形成了积极的循环反馈。
If the number of co-infecting viruses exceeded a certain threshold, the positive feedback loop associated with cI dominated, turning the switch to the lysogenic pathway.
而如果共同感染的病毒数目超过一个特定的阈值，则cl基因主导的正反馈环路将使细胞转向溶原通路。
If the number of co-infecting viruses exceeded a certain threshold, the positive feedback loop associated with cI dominated, turning the switch to the lysogenic pathway.
而如果共同感染的病毒数目超过一个特定的阈值，则cl基因主导的正反馈环路将使细胞转向溶原通路。
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