对陨石球粒质地的研究证实，它们的冷却速度相当快，短则几分钟，长则数小时，因此形成陨石球粒的高温活动肯定是局部的。

Study of the textures of chondrules confirms that they cooled rather quickly, in times measured in minutes or hours, so the heating events that formed them must have been localized.

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派迪恩说：“它们的基础新陈代谢率一定很高才能长那么快。”

Says Padian: "They must have had a high basal metabolic rate to grow that fast."

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汤普森也担心，气候变暖的步伐比植物适应和进化的能力快——尤其是寿命长的树木——这使许多地区的植物面临逐渐死亡的危险。

Thompson also fears that the pace of climate warming is faster than the ability of plants - particularly long-lived trees - to adapt and evolve, leaving some at risk of dying out in many areas.

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These details aren't important, it is described in your book, but the thing that is important to know is that diffusion occurs fast over short distances, but because of the physics of diffusion it occurs slowly over longer distances.

这些具体细节无关轻重,书上都有,重点是你要明白,距离越短扩散越快,由于扩散现象的物理特性,距离越长扩散越慢

耶鲁公开课 - 生物医学工程探索课程节选