查询词典 life span

A dragonfly has life span of 24 hours.

蜻蜓的寿命只有24小时。

A dragonfly has a life span of 24 hours.

蜻蜓的寿命只有24小时。

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。

With the rapid development of the technology of computer and automation, the computer control system is widely used in the manufacture of Al electrolysis and the efficiency is improved and the life-span of the electrobath is increased.

随着计算机和自动化技术的发展，以计算机为核心的自动控制系统已经被广泛应用于铝电解生产过程的控制，提高了生产效率、延长了电解槽寿命。

With the rapid development of the technology of computer and automation, and the demand of the product locale, the computer control system is widely used in the manufacture of aluminum electrolytic and the efficiency is improved and the life-span of the aluminum electrolytic cell is increased.

随着计算机和自动化技术的发展，以及生产现场的需求，以计算机为核心的自动控制系统已经被广泛地应用于铝电解的生产过程控制，提高了铝电解的生产效率、延长了电解槽寿命。

In these three stages, the first stage, which lasts about 3~4 days, is shorter than the other two stages, but it influences the life-span of electrolyzer directly, and accordingly influnces the economic benefits of electrolytic aluminium factory.

在这三个阶段中，焙烧阶段时间最短，一般只有3～4天左右，但是焙烧的好坏直接影响到电解槽的寿命，进而影响到铝厂的经济效益。

As a matter of fact, the previous ways belong to resistance-heated method. Because of uneven heating and some other causes, these methods have a great harm to the life-span of electrolyzer.

这些方法从本质上来讲均属于电阻加热法，由于加热不均等原因，对铝电解槽的寿命都有致命的影响。

The main research contents and results are shown as follows:(1) In order to meet the actural need of this research project, the general ways to bake electrolyzer, which include Aluminium-liquor- baking method, coke-ash-baking method and graphite-powder-baking method, are introduced in details. Their shortcomings and effects on the life-span of electrolyzer are also analyzed.

全文的主要工作和成果总结如下：(1)根据实际科研项目的需要，对现有的预焙电解槽焙烧启动方法铝液焙烧法、焦粉焙烧法和石墨焙烧法进行分析，指出其缺点。

OBJECTIVE: To elongate the proliferation life-span of human umbilicus vein endothelial cell.

目的 寻求使处于生长停滞期的人脐静脉内皮细胞增殖寿命延长的方法。

Caloric restriction prevents the end organ damage, extends the life span of SHR-SP, and delays the occurrence of stroke...

小剂量酮色林单纯地通过改善ABR功能，显著地延缓脑卒中的发生。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。