查询词典 life span

In marsupials, such as opossum and kangaroo , the life span of the corpus luteum is similiar in pregnant and nonpregnant females.

在有袋目动物中，如负鼠和袋鼠，妊娠和非妊娠母兽的黄体存在时间相似。

In marsupials, such as opossum and kangaroo, the life span of the corpus luteum is similar in pregnant and non pregnant females

在有袋目动物中，如负鼠和袋鼠，妊娠和非妊娠母兽的黄体存在时间相似。

The average life-span of a pet parakeet is 10 years.

家养的宠物鸟长尾小鹦鹉的平均寿命为10年左右，而野外生存的长尾小鹦鹉能活25年左右，其中寿命差别的最主要原因就是他们的食谱了。

Bouma T J%Yanai R D Estimating age-dependent costs and benefits of roots with contrasting life span: Comparing apples and oranges New Phytologist , 2001,null

周焱%罗安程有机肥处理对小麦根系生长、活力和磷吸收的影响 10.3321/j.issn：1008-505X.1997.03.008 植物营养与肥料学报， 1997，03

Advanced optical technology and high speed scanning animation technology, long life-span, low power consumption; showing graphics with the function of rotating, zooming, rolling, moving, 3D animation effect, stroboscopic action; can write word, picture, animation graphic, beam performance, and unique laser beam advertisement.

先进光控技术和高精度振镜扫描动画技术，寿命长、功耗低、图案具断笔、旋转、缩放、翻滚、移动、点渐绘、三维动画、频闪等效果、可做文字表演、动画表演、光束表演、激光广告等特有光束。

For its application and maintenance discussion is made on how to use effectively the piston ring and extend its life span.

从使用和维修角度，对如何合理使用活塞环并延长其寿命进行了论述。

To roll and press intensely for the crankshaft of automobile engine is an effective way to prolong its exhausted life span.

汽车发动机曲轴是汽车动力装置的核心零件，其制造质量要求很高。

AIM: Pristine investigation demonstrated that TJU103 could markedly decrease graft versus host disease incidence and intensity, and obviously prolonge life span after allogenetic haemopoietic stem cell transplantation in mice.

目的：前期研究表明，吲哚亚甲基异烟腙(简称TJU103)可以明显降低异基因造血干细胞移植小鼠移植物抗宿主病的发生率和程度，明显延长小鼠移植后的生存期。

Barrel is the key part of artillery. In shot process, propellent gas of high pressure and high temperature flows in the tube at a high rate of speed, which brings an upheaval to the temperature field of the composite barrel. As to the composite barrel with metal inner, its poor thermal conductivity is more likely to cause uneven temperature distribution and bigger temperature gradient, to produce improper deformation and to make the work temperature of metal inner rise, all of which will affect the life span of barrel.

身管是火炮的关键部件，在火炮发射过程中，高温、高压的火药燃气在身管内成脉冲式高速流动，使身管受到急剧的加热，引起身管壁内的温度急剧变化，而对于带金属内衬复合材料身管，由于复合材料导热性能较差，更容易引起非均匀温度分布以及较大的温度梯度，产生不合适的变形，也会使身管的金属内衬的工作温度升高，从而使得身管的寿命降低，同时身管的发热会引起其刚度的变化，增大射弹散布。

As the life span of human beings increasing, the number of people with senile pruritus has increased, too.

随着人口寿命的增加，老年皮肤瘙痒症的发病率也不断升高。

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。