龄

Methods NSCs of different fetal age rats were isolated and cultured through the combination of mechanical and pancreatin digestant isolation.

通过采用机械分离和消化分离相结合的方法分离不同胎龄大鼠脑NSC。

Second-stage juvenile rectum usually not dilated, tail hyaline terminus definite or not , digitate , with bluntly-round tip.

二龄幼虫直肠有的膨大明显，但在大多数标本中看不到膨大，尾透明末端界限明显或不太明显，指状，末端钝圆。

Objective: To study the effects of pentabrominated diphenyl ethers on the structure and function of reproductive system in rats and mechanism.

目的：研究五溴联苯醚对大鼠生殖系统结构和功能的影响及其机制方法：在五溴联苯醚对雄性大鼠生殖系统作用的时效关系研究中，选取健康23日龄雄性SD大鼠40只，体重40～60g，随机分为8组，每组5只，分别为染毒5、15、30、45d的实验组和溶剂对照组。

In the trial one, forty-eight Rex rabbits with similar weight were selected and randomly divi...

试验一选取35日龄体重较为一致的力克斯獭兔48只，随机分为4组，每组12只。

The picture of 4 million doddering,medically needy centenarians is not pretty,but the prospect may not be so grim.

这幅400万名步履蹒跚、疾病缠身的百龄人瑞的景象可是不怎么赏心悦目，不过预期的情况不至于如此悲观。

Her height and head girth were excessive. Some degree of psychomotor retardation was present. Physical features included macrocrania, dolichocephaly, frontal bossing, hypertelorism, high-arched palate, large hands and feet. Cerebral ventricles were mildly dilated on brain computerized tomography. The diagnosis lied mainly on clinical characteristics.

最常见的颅面畸形包括额头隆突，高弓腭，两眼过距，长头症，尖下巴和过早发牙，其他较通常的发现还有发展障碍，大手大脚，高骨龄，细微运动调节之缺乏及新生儿适应或餵食困难，本症之诊断主要靠临床诊断，但由於过去在台湾鲜为人所提及，故易与水脑症混淆。

Gypsy has been doing this to the doorstop since she was a 2 month old puppy .

吉卜赛人已经这样做了 doorstop 因为她是2月龄的小狗。

In order to develop new remaining value functions for large and medium-sized tractors, 116 recent tractor auction sales data in Shanghai State Farm were collected, by different Box-Cox transformations and regression methods, six proposed models with explanatory independent variables of tractor age and average yearly use hours were analyzed and compared, and the double square root model was selected as best one finally.

该文以上海农场近15年出售的116台拖拉机历史数据为观察样本，以机龄和年平均工作小时数为自变量，对6种不同的备选残值模型进行了回归分析和比较，在此基础上优选了双平方根模型为最佳残值模型，并用实际观察数据进行了验证。

Among the total earing plants of the population in natural cutting grassland, 87% was winterness plants.

在分蘖节成株的年龄结构中，1、2龄株占绝对优势，其所占比重达 92 。5 %。

Many of the aging bikers cut their teeth on Fonda's 1969 classic film, Easy Rider, where he played a biker-hippie who encounters death in an intolerant rural America.

其中许多熟龄车主对摩托车的启蒙，都来自於一九六九年彼得：方达的经典电影「消遥骑士」。彼得：方达在片中饰演一名嬉皮骑士，因不见容於美国保守的乡村而遇害身亡。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。