老年医学专家已经发现环境因素如财富和教育对寿命长度的影响在我们变老的时候就消退了，而基因的影响却在增加。
Gerontologists have found that the influence of environmental factors such as wealth or education on lifespan fades as we age, while that of genes increases.
对20岁患者来说，男性预期寿命能增加19年，而女性预计可以多活30年以上。
At age twenty, life expectancy for men was another nineteen years. Women could expect to live thirty more years.
累积塑性应变能随着加载频率及应力水平的增加而增加，与疲劳寿命在半对数坐标下呈线性关系。
The cumulative plastic strain energy increases with the increase of the loading frequency and stress level, which is linear with fatigue life on semilog coordinate.
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