The expected life-span of Beijing residents has gone up to 75.
北京居民的预期寿命已经达到75岁。
If this theory is accurate, our future generations can expect a life-span of 150 years.
如果这一理论是正确的，未来人类预期寿命可达150年。
The batteries had a life span of six hours.
电池的使用寿命是6小时。
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。
Thus they are not able to "experience life" and so they attain a high life span in captivity.
因此，他们不能“体验生活”，从而在囚禁中获得了较长的寿命。
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。
Long-living women are also more likely to be sympathetic and cooperative than women with a normal life span.
与寿命处于正常范围内的女性相比，长寿女性更有可能具有同情心和合作精神。
In comparison to the life span this relationship is "inverted": the larger the organism the lower its metabolic rate.
与寿命相比，这种关系是“反向的”：生物体越大，其代谢率越低。
Like the life span, the metabolic rate has for different organisms a fixed mathematical relationship to the body mass.
就像寿命一样，不同生物的新陈代谢率与身体质量有着固定的数学关系。
There are striking differences in life span between different species, but within one species the parameter is relatively constant.
不同物种之间的寿命存在显著差异，但在同一物种内，这一参数是相对稳定的。
Experience will show that to live in this way not only increases the life span but is also very healthy.
经验会表明这样的生活方式不仅能延长寿命，而且是非常健康的。
Optimism's benefits for physical health also extend beyond heart health, such as improved immune system function and increased life span.
乐观对身体健康的益处不仅限于心脏健康，还包括改善免疫系统功能和延长寿命。
The major components of our energy systems, such as fuel production, refining, electrical generation and distribution, are costly installation that have lengthy life span.
我们能源系统的主要组成部分，如燃料生产、提炼、发电和分配，用的是昂贵的、使用寿命较长的装置。
If you examine the metabolic rates of the two sexes you establish that the higher male metabolic rate roughly accounts for the lower male life span.
如果你研究两性的代谢率，你就会发现，男性较高的代谢率大致解释了为何他们寿命较短。
The study which compared the growth rate, success of reproduction and life span of stickleback fish, found that fish given a "binge then diet" food regime had a reduced life span of up to 25%.
这项研究通过对比刺鱼的生长速率，繁殖成功率和生命跨度，发现被喂养“狂吃然后减肥”的饮食节律的鱼寿命缩短达到了25%。
Compare this with an average life span of 52 in 1960, or of about 30 in 1900.
把这个数字与1960年的平均寿命52岁相比，又或者与1900年的人均30岁寿命相比。
New research suggests that an important indicator of your probable life span may be your genes.
新研究表明，决定你预期寿命的一项重要指标可能是你的基因。
The importance of this life span process and its influence on the management of the project cannot be overemphasized.
不能过分的强调生命周期过程的重要性和它在项目管理中的影响。
Some are so slow growing they never would have caused medical problems in the person's natural life span.
一些肿瘤长的那么慢，它们从不会在一个人的自然生存期内导致问题。
So on the one hand a larger brain favors a long life span but the opposite could also be true, that a longer life span favors a large brain.
所以一方面脑子大导致寿命长，反之也能成立，即寿命长则脑子大。
Dissipating heat prolongs life span and increases efficiency.
散热延长汽车寿命并提高效率。
Mature RBC have a finite life span; their production and destruction must be carefully balanced, or disease ensues.
成熟红细胞的寿命是有限的，它们的产生和凋亡必须保持精确平衡，否则会发生疾病。
Buildings are routinely designed, constructed and maintained to be optimised over their entire life span.
使建筑物整个生命周期达到最优化进行设计、建造及维护。
One area where the industry needs improvement is in the life span of its products.
该行业需要改进的一个领域是其产品的寿命。
Perhaps most significantly, blog posts now have a longer life span.
或许最重要的是，博客文章的生命周期更长。
But some farmers plant cocoa under shade trees, increasing the life span of the cocoa trees.
然而现在很多农民开始在潮湿阴暗的环境下种植可可树，从而大大增加了它们的寿命。
A typical life span for Sumatran orangutans is 40 to 50 years.
苏门答腊猩猩的平均寿命在40到50岁。
A typical life span for Sumatran orangutans is 40 to 50 years.
苏门答腊猩猩的平均寿命在40到50岁。
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