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).
提出了刀具全生命周期管理的概念，将刀具全寿命周期管理划分为计划期、投入期、使用期、报废期四个阶段。
The concept of cutting tool life-cycle management was put forward, and divided it into four phases: planning period, input time, serviceable life and discarding period.
随着人的平均寿命的不断延长，在更年期的调整变化中，不少人的内在生理机能出现了复苏现象，从而开始生命过程的第二周期。
With the extension of the average life span, many people start their second life cycles, due to the recovery of physiological function.
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