查询词典 stratified sample

This research holds that although China's entry into WTO, from the long run, will be beneficial to the domestic economic growth and the improvement of employment opportunity and per capita income on the whole, the fierce global market competition, incurred by the economic globalization based on market economy, will strengthen institutional social exclusion on one hand and worsen the individual's vulnerability on the other, which jointly contribute to the urban poverty problem in China and make it a long-term, stratified and districted issue.

本研究认为尽管从总体上和长期发展来看，加入世界贸易组织将对中国的经济增长和提高劳动者的就业机会及收入水平有好处，但以市场经济为基础的经济全球化所引发的激烈的全球市场竞争却会导致制度性社会排斥力量的增强和社会成员面对全球市场竞争的脆弱性的增加。

The oesophagus was very short, and stratified and simple columnar squamous epitheliums were identified.

胃膨大，呈Y形，在贲门和幽门部可观测到杯状细胞，胃体粘膜层下有大量的胃腺细胞。

The buccal-pharynx cavity was large, and its mucosa was composed of stratified squamous epitheliums with a few goblet cells.

食道很短，但上皮包括复层鳞状上皮区和单层柱状上皮区。

MethodsDescriptive analysis was conducted among 818 medicos, who were sampled by stratified cluster sampling, and the model was established.

采用分层整群抽样的方法，对某医科大学818名医学生心理健康状况的一般情况进行描述性分析，并拟合结构方程模型。

objective to study mental health status among medical students, and to explore the relations between the influencing factors and latent variables to mental health.methodsdescriptive analysis was conducted among 818 medicos, who were sampled by stratified cluster sampling, and the model was established.

目的 了解医学生心理健康状况，探讨医学生心理健康的影响因素及其潜变量之间的关系。方法采用分层整群抽样的方法，对某医科大学818名医学生心理健康状况的一般情况进行描述性分析，并拟合结构方程模型。

The population was 624 certificated special education teachers of elementary school in Kaohsiung city and Kaohsiung County, drawing 250 subjects by stratified random sampling for pretesting.

本研究主要探讨高雄县市国小特殊教育教师之教师信念、生命意义感与生命教育态度的关系。

As the distance away from the entrance increases, the magnitude of pressure undershoots increases at first, then, decreases linearly. But the period of stratified flow increased linearly.

随着测压点离管道入口距离的增大，压力&过降&值先是增加然后线性降低，而短暂分层流周期的大小则线性增大。

Three-dimensional numerical simulation of the combustion process in an alcohol engine, with a new type of spark-ignited direct-injection circularly stratified-charge combustion system, is carried Out. The computed pressure and heat release data coincide with the experimental results well.

利用混合燃烧模型对一台采用火花点火、缸内直喷、周向分层燃烧系统的醇类燃料发动机的燃烧过程进行了三维数值模拟，计算所得的缸内压力和燃烧放热速率与实验结果吻合良好。

Methods Stratified random cluster sampling was applied to conduct the investigation and filter blood spot was collected and examined.

方法采用分层随机整群抽样，开展居民个案调查，同时采集滤纸血滴。

A stratified sampling method is used to estimate the cotton field...

设计了满足生产应用的全国作物面积遥感监测抽样运行方法

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。