life span
英 [laif spæn] 美 [laɪf spæn]

n.

生命的源泉；寿命；

英英释义

life span

• n.the period during which something is functional (as between birth and death)

  同义词：lifelifetimelife-timelifespan

双语例句

1. The machine's life is very long.
   这机器使用寿命很长。
2. Women have a higher life expectancy than men.
   女人比男人的预期寿命长。

权威例句

Extension of Life-Span by Introduction of Telomerase into Normal Human Cells
HIV-1 Dynamics in Vivo: Virion Clearance Rate, Infected Cell Life-Span, and Viral Generation Time
Requirement of NAD and SIR2 for life-span extension by calorie restriction in Saccharomyces cerevisiae.
A life-span, life-space approach to career development.
The p66shc adaptor protein controls oxidative stress response and life span in mammals
Extension of murine life span by overexpression of catalase targeted to mitochondria.
Reconstitution of telomerase activity in normal human cells leads to elongation of telomeres and extended replicative life span
Mapping cortical change across the human life span.
Extension of life-span by overexpression of superoxide dismutase and catalase in Drosophila melanogaster.
Discounting of Delayed Rewards: A Life-span Comparison