Medical advances are conquering diseases and extending lifespans.

医疗进步战胜疾病，扩展预期寿命。

We also have the belief that we will live out our normal lifespans.

我们也相信我们会活到正常寿命。

Now, this doesn't mean that de Grey is going to revolutionize our lifespans.

当然，这并不意味着德·格雷会彻底改变我们的寿命。

If we only study the lifespans of people who've already died — say, everyone born in 1890 — that won't help us figure out today's life expectancy.

如果我们只研究已经死亡的人的寿命——比方说1890年出生的人——就无法计算出今天的预期寿命。

Podowski and others said most of the existing U.S. nuclear reactors are reaching the end of their lifespans.

波多斯基和其他人都说，美国显存的大部分核反应堆都快要到达寿命了。

Podowski and others said most of the existing U. S. nuclear reactors are reaching the end of their lifespans.

波多斯基和其他人都说，美国显存的大部分核反应堆都快要到达寿命了。

Thus, all elves are now mortal and have comparable lifespans that can extend as long as several thousand years.

因此，所有的精灵现在均会衰老以及死亡，但依然拥有长达几千年的寿命。

The countries with the longest lifespans all have strong economies, good access to healthcare, and generally healthy diets.

人口寿命最长的国家都拥有强大的经济实力、良好的医疗条件和健康的饮食。

Dendrochronology A method of archaeological dating by the ANNUAL RINGS of tree, used when the lifespans of living and fossil trees in an area overlap.

在一定的区域内当生活树木以及化石树木的寿命有重叠时，通过树木的年轮来推测考古学年代的方法。

‘Healable polymers offer an alternative to the damage and discard cycle and represent a first step in the development of materials that have much greater lifespans than currently available materials.’

自修复高分子材料提供了一个全新的模式能够改变损伤—丢弃的宿命，开创了研发拥有更长使用寿命材料的新时代。