寿命

Objective To study the effects of di-n-butyl phthalate on the fecundity and the life span in drosophila melanogaster.

目的 研究邻苯二甲酸二丁酯对果蝇生育力和寿命的毒性作用。

As a result of the frequent generation of the drug-fast bacteria, the available life of antibiotics becomes shorter and shorter.

由于耐药菌的不断产生，使得抗生素的使用寿命越来越短。

Dry-cleaning can extend the life of your clothing.

干洗可以延长衣服的寿命。

Second, Duckbill valve Water Pump Control Valves pros and cons: 1 advantages: Duckbill valve, low cost, such as the use of appropriate rubber material than metal valve service life, easy installation, installation of flexible and diversified ways to repair.

二、鸭嘴阀的优缺点： 1、优点：鸭嘴阀成本低，如采用合适橡胶原料使用寿命超过金属止回阀，安装方便，安装方式灵活多样，可修补。

The dung beetle is selected as bionic prototype in this paper to design the working layer of an impregnated diamond bit,which makes the bottom surface always keep the same non-smooth shape and makes the bionic bit maintain a high penetration rate and long-life...

以蜣螂为仿生原形，设计孕镶金刚石钻头的工作层，使工作层底唇面始终具有相同的非光滑形态，始终保持高钻速和长寿命，突显出仿生金刚石钻头的高效率、耐磨和减阻特点。

This new technology center is a prime example of how DuPont is implementing its global strategies in China.

通过这样的合作，我们能够协助开发出效率更高、使用寿命更长的太阳能组件，提高太阳能作为替代能源的可行性。

However, durum is also gaining worldwide attention for bread products because of its high water binding capacity, which inhibits the staling process and leads to longer shelf life.

然而，多伦小麦因为它的高效率结合水能力对面包产品也获得了全世界的关注，并可延长货架寿命。

Product description: ZT4-00 23 liters laboratory beater Characteristic: This machine adopts Holland type beater chest, beater roll, bed knife which all used high-quality stainless steel; beater roll is made of stainless steel, knife can't be drop. Long performance life; automatically beat time control; dustcoat used organic material transparent high strength, whole operating process is directly observed.

产品说明： ZT4-00型23升打浆机特点：本机采用荷兰式浆池、飞刀辊、底刀并全部采用优质不锈钢制作；其中飞刀辊是整体不锈钢制作，不存在刀片松动等现象，使用寿命长；打浆时间自动控制；外罩采用透明高强度有机材料制作，整个操作过程直观可视。

The basic theory and methods about dynamic fatigue test and screen test are introduced.

介绍了光纤寿命预期的疲劳实验方法和筛选实验方法。

The structural character of the driving end caps of Comings B series diesel oil dynamotor is analyzed, the original diecasting die structure is optimized, as well as the productive efficiency and die life get improved.

分析了康明斯B系列柴油发电机驱动端盖的结构特点，对原有压铸模具结构进行了优化，大大提高了生产效率及模具寿命。

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