Their heat tolerance is reduced, too.

她们的耐热性也降低了。

They are now centering on those healthy survivors and hoping to further increase their resistance to heat.

他们现在以那些健康的幸存者，希望进一步提高它们的耐热性。

There wasn't nearly enough time for the microbes here to evolve a heat tolerance, so what's going on?

这里的微生物几乎没有足够的时间进化出耐热性，所以这怎么回事？

They've also evolved greater heat toleranceto deal with the high temperatures that define dense urban environments, what we call urban heat islands.

它们还进化出了更强的耐热性， 以应对密集城市环境的高，们所说的城市热岛。

They say if the more heat-resistant corals they developed do well in the ocean, the method can be used to help save suffering and dying reefs.

他们说，如果他们培育的耐热性更强的珊瑚在海洋表现良好，这种方法可以用来帮助拯救遭受痛苦和濒临死亡的珊瑚礁。

But it came with a set of its own challenges like fuel efficiency, supersonic shockwaves that interfered with the plane's airflow, and, most important of all, heat resistance.

但它也面临着一系列挑战，例如燃油效率、干扰飞机气流的超音速冲击波，以及最重要的耐热性。