寿命；使用期限

n.生命的源泉; 寿命

life spans───寿命；使用期限

lifespan───n.寿命；预期生命期限；预期使用期限

life space───生活空间

lifespans───n.寿命；预期生命期限；预期使用期限

time span───时间跨度

life spaces───生活空间

life plant───落地生根

life signs───生命迹象

time spans───时间跨度

Drinking this preparation regularly promotes your health and prolongs your life - span.───常饮本品,促进健康,延年益寿.

Optimism's benefits for physical health also extend beyond heart health, such as improved immune system function and increased life span.───乐观对身体健康的益处不仅限于心脏健康，还包括改善免疫系统功能和延长寿命。

Normal cells show a finite life span.───正常细胞显示有限的生命期.

Energy saving equivalent to 6 times life span of an incandescent lamp.───外观优美,节能省电,寿命长达白炽灯的6倍.

Most of the improvements in life span are the result of preventive, rather than treatment.───大多数寿命的延长是预防的结果，而不是治疗的结果。

The life span of the people of Ningxia has increased to 69 from 30 before 1949.───宁夏人均寿命由1949年前的只有30岁左右,增加到目前的69岁.

The works are reasonable life span of 50 years, two security rating.───该工程合理使用年限为50年, 安全等级二级.

This approach reduces friction and increases the life span the involved components.───这样就减少了磨擦,增加了相关组件的寿命.

Indicate what is unique about the life span of taste cells.───说明味觉细胞寿命的独特性.

At one time, the human species had a 2000 - year life span.───曾有一段时期, 人类物种拥有2000年(人类年)的寿命.

Some insects have a life - span of no more than a few hours.───有些昆虫寿命只有几小时.

The batteries had a life span of six hours.───这些电池的寿命为6小时。

Gigantism life - span how long? Is Yao Ming Yao gigantism greatly mechanically?───巨人症寿命多久? 姚明姚大傻是巨人症 吗 ?

batteries had a life span of six hours.───电池的使用寿命是6小时。

The autonomous cycle length varies at different periods in the life span.───自动周期的年度随人生不同阶段而不同.

The average life span of a major league baseball is 5 - 7 pitches.───大联盟用的棒球平均寿命只能被投五到七次?

Special silicon blended material provides extended life span and quieter performance.───特别的硅混合材料提供延长寿命和噪音性能.

They have extended the potential life span of humanity everywhere.───世界各地人类的预期寿命均有所延长。

Captivity vastly reduces the life span of whales.

He points out that an animal's life span is linked to its metabolic rate.

It is generally accepted that the life span of the traditional flat felt roof is about 10 years.

There is little information on their life span in the wild -- perhaps leeches are difficult to track.

The whole life span of a record, including its creation needs to be planned carefully.

With a longer life span, a lot of people are just becoming too frail to take care of themselves.

Logitech predicts a life span of between six months and a year.Overall, I liked the MouseMan Cordless very much.

A 10-year life span for classified information, unless an agency specifies that the information must have continued secrecy.

The batteries had a life span of six hours.