查询词典 hypothetical population

Stratified sampling design is applied in obtaining an accurate representation of the population by grouping the data into nonoverlapping groups, for example gender or income level, then selecting a simple random sample within each group.

分层抽样是将总体分成若干个组分，在每个组分中进行简单随机抽样，其原则在于将类似的样本归在一个组里面。

Secular trends in the population-based incidence rates of nonperforated and perforated appendicitis and negatie and incidental appendectomy were examined.

在10-19岁年龄组中这25年来的减少趋势几乎可解释逐渐降低的发生率。1995年后上升趋势发生在5岁以上的各年龄组中，并由于CT诊断和腹腔镜对于阑尾炎的影响而带来了上升趋势。1995年后，保守性的治疗已经在下降，特别在女性患者中。

Increased seerity of heart failure or increased number of concomitant medications did not worsen persistence, but nonpersistence identified a high-risk population of patients who required special attention.

心衰恶化或治疗药物数量的增长并不使持续治疗的比例减少，但在高危病人中没有持续治疗值得特别关注。

Increased seerity of heart failure or increased number of concomitant medications did not worsen persistence, but nonpersistence identified a high-risk population of patients who required special attention.

关注早期开始治疗，合适的剂量，以及坚持用法很可能会带来远期的获益。

The water resource shortage,the nonreasonable economic structure and population pressure are the main reasons which lead to the ecological and environmental problem in Shiyanghe Vally.

石羊河流域可利用水资源量有限、区域经济结构不尽合理和近10 年来人口压力的不断增加是造成地下水严重超采、流域生态环境持续恶化的主要原因。

First, the survey process, including the sampling procedure and design of the survey questionnaire, increases the risk that the survey will collect nonrepresentative data from the survey population, thereby limiting the overall representativeness of the resulting survey data.

首先，调查过程，包括抽样程序和设计的调查问卷，增加了风险，这项调查将收集数据nonrepresentative从调查的人口，从而限制了整体的代表性，由此产生的调查数据。

"Rural counties in the United States have higher rates of obesity, sedentary lifestyle and associated chronic diseases than nonrural areas, yet treatment of obesity in the rural population has received little research attention," according to background information in the article.

&农村地区在美国较高的肥胖，久坐的生活方式和相关的慢性疾病nonrural地区比，但治疗肥胖症在农村的人口已收到研究不多注意，&根据背景资料的文章。

The systemwas thus segmented—from its inception and through to the reform of 2003—between insured, formal, salaried employees and their families with the right to social security, and the rest of the population (the selfemployed,the unemployed, nonsalaried and informal-sector workers, and those who do not work).

因此，在systemwas分割？？从一开始就通过到2003年的改革？？保险之间，正规，受薪雇员及其家属的社会保障权，以及其他人口（即selfemployed，失业者，nonsalaried和非正规部门的工人，和那些谁不工作）。

There are numbers of peope who commite themselves to protect the health of nonsmoking population.

还有很多人在全心全意地保护不吸烟者的健康呢！

In addition, the mis statements found in either a nonstatistical or a statistical sample should b e used to estimate the total amount of misstatements in the population.

此外，无论是在非统计样本还是在统计样本中发现的误报，都应该用于估计总体的误报总额。

I ask myself how many of you have set foot in my motherland?

我问自己你们多少人足迹到过我的祖国？

Screen Margie's film,"Cable News Goes to War."

播放Margie的电影"有线电视新闻间的大战"。