寿命

An insurance company can tell you the expectation of life of a man forty years of age.

保险公司能够告诉你，四十岁人的寿命期望值。

They were an average lot of people, which means that on an average they lost half their expectation of life.

他们是一批普通人，这意味着平均减损了一半的预期寿命。

Expectation of life is the prediction of the average number of years that one can live.

估计寿命是预计一个人能活的平均年数。

Expectation of life is a slippery figure, very easy to get wrong at the highest ages.

人生的估计寿命是一个飘忽不定的数字，年龄越大越容易有误差。

With the prolong of human expectative life, aging of the population and de- mentia are increasing.

目的 随着人类期望寿命的延长，人口老龄化和痴呆的发病率呈上升趋势。

Expeller, pressure-relief cover and shaft sleeve are made of wearable material, which are of low maintenance, long life

付叶轮、减压盖、轴套均采用耐磨材料制造，维修量少，使用寿命长，使整机平均无故障工作时间MTBF大大提高。

Expeller, pressure-relief cover and shaft sleeve are made of wearable material, which are of low maintenance, long life for use and greatly improve MTBF

付叶轮，减压盖，轴套均采用耐磨材料制造，维修量少，使用寿命长，使整机平均无故障工作时间MTBF大大提高。

Elevating the valid time of using the cell, and using the cell more rationally. The MCU AT89C51 was used as its main CPU and combined with display module, A/D converter, expended memory and watch dog technology in order to satisfy the need; a new type of infrared wireless technology was used to transmit the data collected and was given the real circuit design picture.

能更有效、合理地使用和保养电池组，提高电池使用寿命；该系统采用单片机主机AT89C51结合显示、模／数转换、扩展存储和看门狗技术；数据传输采用RS-232串口转红外无线技术进行传输，并给出了具体电路设计图示。

Many of these small molecules have very short lifetimes under normal conditions. Thus, it has remained a challenge for experimentalist to characterize them spectroscopically or to stabilize them under controlled circumstances.

许多小分子在正常的条件下寿命较短，测到它们的光谱或使这种物质在一定的环境中稳定存在一段时间对实验化学来说一直是一个巨大的挑战。

It is easy to show, for an exponential decay, that the uncertainty in the life time is also z

很容易证明，对于指数衰减来说，寿命的不确定性也是z。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失