塑性流动的特殊情况是冷变形，发生在硫化橡胶长时间连续承受低应力时以及金属蠕变时。

Special instances of plastic flow are cold flow, which occurs in vulcanized rubber after low stress has been continuously applied for a long time, and creep of metals.

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通过分析典型大时变时滞工业过程的特性，提出了一种新的数字PI I鲁棒调节控制器的设计方法。

A new design method of digital PII robust adjusting controller for a general process control system with large time varying time delay is developed by studying its properties.

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你永远说不清她要干什么。她一时一变。

You never know what to expect with her. She's so temperamental.

《牛津词典》

A lot of people get complacent during normal times and they assume that normal times will go on forever.

风平浪静时人们容易变的自满,他们认为这太平盛世会持续到永久

耶鲁公开课 - 金融市场课程节选

And when these groups were set in competition against each other, the Eagles versus the Rattlers, the within-group intensity grew.

当这两队小男孩,要与另一队互相竞争时，老鹰对响尾蛇，这种群内感情开始变强烈。

耶鲁公开课 - 心理学导论课程节选

Think of anything else with the density goes down when it freezes, and think about where we would be if that wasn't the case.

想想有没有其他的物质,在降温时密度会变大，再想想如果不是这种情况,我们将会怎么样。

麻省理工公开课 - 固态化学导论课程节选