分层的

The results of stratified analysis showed that the reinfection levels were higher in the younger than in the older.

分层分析发现，在暴露水平相似的情况下低年龄组较高年龄组更易发现再感染或重度再感染。

The vertical distribution of root weight, length and volume density of Robinia pseudoacacia L.

通过分层挖掘法，对20龄刺槐、油松林根系密度的空间分布进行了研究。

The saltation coefficient of wavelet analysis was regarded as a characteristic value to predict a sudden accident and the changing trend of the coefficient was figured out.

文中采用小波分层突变系数作为判别故障隐患的特征值，并对该特征值进行趋势分析。

Methods The stratified random sampling rule and the standard grading system of blindness set by WHO were adopted in the study, and 11 327 subjects were enrolled (a sampling fraction of 2.01%) in the whole county.

采用分层随机抽样原则，以世界卫生组织盲目分级为标准，对全县按2.01%抽样比例抽取11327例进行盲和低视力的流行病学调查。

By using stratified sampling method, a retrospective analysis was performed according to 1 146 cases.

采用分层抽样的方法，回顾性地分析1 146例患儿首选及联合使用抗生素情况。

Methods: Stratified sampling survey among the youth in government organizations.

研究方法：采用分层抽样方法对机关青年的工作满意度和价值观进行问卷调查。

Mushroom: Rich, elemental and sensuous, the layered frappé pattern is rendered in colors of clove, sand dollar, vanilla and melon.

蘑菇：丰富，元素和感性，分层冰咖啡的模式呈现在颜色丁香，沙美元，香草和甜瓜。

The hiberarchy of sclerenchyma cell wall of BM-rice leaf was not obvious by the observation of TEM.

3通过透射电镜观察，脆性突变水稻的细胞和细胞壁结构也有较大变化：叶片厚壁组织细胞细胞壁分层不明显；茎杆薄壁组织细胞形状不规则，大小不均一；根薄壁组织细胞细胞壁表面凹凸不平，形体膨松胀大。

The practice teaching system of secretaire specialty can divide into three levels and four modules,the former include basis,specialty and application,and the later include viewing before l...

文秘专业实践教学体系分为基础、专业、应用3个层次和学前见习、课程实习、岗位实习、毕业实习4个模块，按"分层培养，层层递进，逐步提高"的方式进行。

Layered described Cambrian - the Triassic formation, with the period of tectonic events on the sedimentary layers and structural features several important period of formation is not integrated interface, and Tajikistan low uplift tectonic evolution into paleouplift a period ( As early as the late Ordovician), paleouplift stereotypes period, the uplift of ancient period (Silurian Period to the Devonian), partial adjustment period in four phases.

分层描述寒武系—三叠系地层，结合各期构造事件研究了各层沉积构造特征及几期重要的地层不整合界面，并将塔中低凸起构造演化分为古隆起形成期、古隆起定型期、古隆起改造期、局部调整期四个阶段。

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