1、If this theory is accurate, our future generations can expect a life-span of 150 years.
如果這一理論是正確的，未來人類預(yù)期壽命可達(dá)150年。

2、Some insects have a life-span of no more than a few hours.
有些昆蟲壽命只有幾小時(shí)。

3、A HIGH STABLE LONG LIFE-SPAN REFLACTIVE GaAs(Cs, F) PHOTOCATHODE
高穩(wěn)定長壽命反射式GaAs(Cs,F)光陰極

4、But 20th century medicine did little to increase the natural life-span of healthy humans.
然而，20世紀(jì)的醫(yī)學(xué)對健康人的自然生命周期的增長幾乎無能為力。

5、Some insects have a life-span of no more than a few hours
有些昆蟲壽命只有幾小時(shí)。

life-span翻譯