Narwhals maximum life span is about 50 years.
寿命：独角鲸的最大寿命大约为50年。
EVIDENCE SYNTHESIS: It is not known whether calorie restriction extends maximum life span or life expectancy in lean humans.
证据分析：还不知道限制热量的摄入能最大的延长瘦人的生命或预期寿命。
In rodent models, calorie restriction with adequate nutrient intake decreases the risk of developing chronic disease and extends maximum life span.
在动物模型中，摄取足够的营养并且限制热量的摄入能够减少慢性疾病发生的危险，并能延长寿命。
According to a German aging study, the maximum life span in industrialized countries has increased by two years every decade since the mid 19th century.
德国一项关于寿命的研究指出，19世纪中叶以来工业化国家人口的最高寿命增长迅速——每十年人们的最高寿命就会增长两岁。
The results showed that the medial death time, average life span and average maximum life span in male and female Drosophila melanogasters were prolonged markedly.
结果表明，海狗肾能够显著延长雌性果蝇和雄性果蝇的半数死亡时间、平均寿命和平均最高寿命；
The trees reach maximum yields at a relatively early age and maintain this level of production throughout their life span.
还在树龄相当小的时候，就可达到最高产量，而且在整个生命周期的，都能保持这种产量水平。
In fact, although medical science has extended life expectancy, it has had little or no effect on our life span (the maximum length of life possible in our species).
虽然医药科学已经延长了寿命，但对我们的生命期(人类生命可能达到的最长时间)几平很少或根本没有影响。
In fact, although medical science has extended life expectancy, it has had little or no effect on our life span (the maximum length of life possible in our species).
虽然医药科学已经延长了寿命，但对我们的生命期(人类生命可能达到的最长时间)几平很少或根本没有影响。
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