| 1. | Expectations of life are due to various factors
人们寿命的长短取决于种种因素。 |
| 2. | Expectation of life at birth and total fertility rate
出生时平均预期寿命及总和生育率 |
| 3. | The duration of marriage is related most obviously to the expectation of life
很明显，婚姻生活的持续时间与人的预期寿命有关。 |
| 4. | 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。 |
| 5. | Function : equiped with intellectual time delay device , can extract the remain air so that extend the expectation of life of the device
功能：带智能化自动延时保护装置，能彻底抽空残余腐蚀气体以保护设备使用寿命。 |
| 6. | Thus , the expectation of life requires a comprehensive analysis of the many variables to consider changes in social life , and these changes may impact on life expectations
我们力争把对职工群众生活期望的分析放到社会结构之中进行,在各种变量关系中对这一现象进行解析。 |
| 7. | The third factor was that females generally live longer than males - - the expectation of life at birth of females in 2003 was 84 . 3 years while that for males was only 78 . 6 years
第三个因素是女性普遍较长寿- -在二零零三年，女性出生时平均预期寿命是84 . 3年，而男性则为78 |
| 8. | But now it is realized that supplies of some of them are limited , and it is even possible to give a reasonable estimate of their “ expectation of life ” , the time it will take to exhaust all known sources and reserves of these materials
可是现在人们意识到，其中有些矿物质的储藏是有限的，人们甚至还可以比较合理的估计出这些矿物质“存在年数” ，也就是说，经过若干年后，这些矿物的全部已知矿源和储量将消耗殆尽。 |
| 9. | But now it is realized that supplies of some of them are limited , and it is even possible to give a reasonable estimate of their “ expectation of life ” , the time it will take to exhaust all known sources and reserves of these materials
可是现在人们意识到,其中有些矿物质的蕴藏量是有限的,人们甚至还可以比较合理的估计出这些矿物质“可望存在多少年” ,也就是说,经过若干年后,这些矿物的全部已知矿源和储量将消耗殆尽。 |
| 10. | But now it is realized that supplies of some of them are limited , and it is even possible to give a reasonable estimate of their “ expectation of life ” , the time it will take to exhaust all known sources and reserves of these materials
译文：可是现在人们意识到,其中有些矿物质的蕴藏量是有限的,人们甚至还可以比较合理的估计出这些矿物质“可望存在多少年” ,也就是说,经过若干年后,这些矿物的全部已知矿源和储量将消耗殆尽。 |
