The batteries had a life span of six hours.

电池的使用寿命是6小时。

《柯林斯英汉双解大词典》

Nevertheless, a restricted life span, ageing, and then death are basic characteristics of life.

然而，有限的寿命、衰老和死亡是生命的基本特征。

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The results add to a growing body of evidence that certain psychological factors may predict a longer life span.

有越来越多的证据表明，某些心理因素或许能预示更长的寿命，这些结果进一步证实了这一点。

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So one of the reasons there is a huge increase in life span is because people aren't dying of things that they would have in prior years.

寿命范围显著增长的一个原因是,人们不再死于,以前那些致死的东西

耶鲁公开课 - 生物医学工程探索课程节选

Software companies large and small make these kinds of judgments on a daily basis during both the development process and the life span of a deployed product.

FORBES: How Bad Assumptions Are Making Software Less Secure

Environmental campaigners have lost a legal battle to limit the life-span of a landfill site near their homes in Wrexham.

BBC: Hafod Quarry landfill appeal bid lost at High Court

But bacteria and viruses breed fast, so natural selection has time, within the span of a human life, to make a difference.

ECONOMIST: Evolution: Beetle drive | The