查询词典 life span

The planishing mill designed adopts a framework with an initiative driving system with double dynamoelectric machine, enclosed type of machine frame, fluid-pressure system and so on. As a focal point, this paper has discussed the design calculation for the planishing mill, including: structure parameter of a rolling mill, initiative driving system, choose for dynamoelectric machines, a design for fluid-pressure system, a determination for the size of the machine frame and its intensity checking, roller design and its intensity checking, life-span of the bearings and so on.

设计的平整机主要采用了双电机主传动传动系统、闭式机架，液压压下系统等机构；本论文着重在于研究了平整机的设计计算，具体包括：轧机的结构参数设计计算、主传动力能参数设计计算及电机的选择、液压压下系统设计、机架尺寸确定及其强度校核、轧辊设计和强度校核、轴承的寿命计算等。

In respect that various requirements of load and temperature on different parts of the baker, firebrick lining was chose reasonably, and the dosage of light heat preservation brick is in enlargement. As a result of that, the weight of the furnace was decreased, and increased its performance of heat preservation and cumulation was increased consumedly. With the use of ""W"" type fire tunnel and straight-through dilatation joint, and two enlargement of the perpends on the wall appropriately, all the problems of heat preservation in the anode baker, uniform temperature in the tunnel, and its life span were solved effectively. In the research of anode blocks in and out of the furnace, and of tidying it up, the multi-function crane clamps was alented and the assembling unit was reconstructed, which made it easy to automatic ally assemble the carbon blocks of various specifications with only one set of assembling unit.In the aspects of automation, a new type pulse combustor and solid thermocouple, as a result of that, not only the control accuracy of the fire tunnel's temperature was increased, but also the system function was improned to be more dependable, safe and practicable.

在焙烧炉炉体研究方面，针对焙烧炉不同部位的负荷及温度要求的不同，合理选用耐火材料，加大轻质保温砖的用量，既减轻炉体的重量，又大大提高炉体的保温蓄热性能；火道墙采用&W&型火道结构，直通性膨胀缝，并适当加大火道墙竖缝，有效地解决了阳极焙烧炉的保温、火道温度均一及火道墙的使用寿命等问题；在阳极炭块装出炉及清理等研究方面，通过对编解机组及多功能天车夹具进行改造，实现一套机组对多规格炭块的自动编组、解组及装出炉问题；焙烧炉自动化控制研发中，采用先进的分散式控制系统，研制开发新型脉冲燃烧器及实体型热电偶，不仅提高了火道温度的控制精度，而且提高了系统的可靠性、安全性、实用性。

The stably transfected cells were selected by neomycin and expanded life span which were designated hTERT-MSCs was observed.

检测转染前后hTERT在mRNA水平的表达，端粒酶活性的变化，hTERT转入后对细胞增殖的影响。

Compared to that in crops,gene introduction in trees has bigger potential ecological risk in environmental release and extension,because trees,most of which are wind-dispersed,grow on various habitats,have longer life span,and subject to relatively more extensive management.

由于林木栽培环境复杂、生产周期长、经营管理粗放，且主要为风媒传粉植物等原因，与集约化程度较高的农作物相比，转基因林木环境释放及推广的潜在生态风险性更大。

Through the analysis of cause of slurry valve rod failure and its improvement,the life span of the Y-type discharge valve is over one time longer than before.

通过对放料阀阀杆失效原因的分析与改进，使Y型放料阀的寿命延长一倍以上。

For this, I'll give you a twenty-year life span.

这样我将会给你20年寿命。

For this, I'll give you a twenty-year life span.

若能如此，许你寿命二十年。

After all, for most of our hundred thousand-year existence-all but the past couple of hundred years-the average life span of human beings has been thirty years or less.

毕竟，在我们生存的千百年里，人类的平均寿命只有30岁或者更少。

The life span of a taste bud is ten days.

味蕾的寿命是十天。

The equipment and technology of the high-power twice atomizing arc spray in steel bridge anti-corrosion is investigated,owing to the shorter service life-span,the more frequency maintenance and the higher maintenance expense for steel bridge tar-paved layer.

设计拉法尔一次和扁平扇形二次喷嘴的二次电弧喷涂设备，采用无尘自动喷砂、电弧喷锌和喷涂粘结型封闭剂工艺的防腐蚀工艺技术，制造自动喷涂施工工装对钢桥面进行长效防腐蚀施工，为提高路面铺装层使用寿命提供保障

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。