查询词典 sampled

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 nauplii were sampled after fed with NFLX at different does and different time, the concentrations of NFLX were determined by High Performance Liquid Chromatography.

将卤虫无节幼体分别放入0.5、1、1.5、2.0g/L的NFLX混悬液中强化，不同时间点取样，高效液相色谱法测定卤虫体内NFLX含量。

At first, the dissertation neatened the meanings ,types and characters of rubric systematacially; found out the deficiencies in the researchs at home and abroad by literature, and analysed the current problems in using the rubric by questionnaire and interview; based on the analysis on the platforms" functions abroad and the demands of users, the author designed and developed a web-based rubric which can create rubric and assess students online; primarily designed a teaching assessment process based on rubric by the education assessment theories, and by action research, sampled the BiGguiYuan middle school students in Grade 2 as the research objects, used the rubric in information technology teaching; during the study, the author observed the teaching activities,students" learning behaviors and teaching blogs; finally, the author analyzed the dates from questionnaire and teachers interview and observing of the researcher,testified each other in order to validate the effect of applying rubric.

本文首先对量规的含义、类型和特点等进行了系统梳理；通过文献调研发现国内外研究中的不足，并运用问卷调查法和访谈法，分析出当前使用量规过程中存在的问题；在对国外平台的功能和国内用户需求分析的基础上，设计和开发了一个基于网络的量规自动生成和在线评价平台；本研究在现代教育评价理论的指导下，初步设计出基于量规的教学评价过程，通过行动研究，选取顺德碧桂园学校初二学生作为研究对象，在《信息技术》教学中运用该过程；在研究过程中，对教师教学活动、学生的课堂学习行为以及教学日志进行了观察；最后运用&三角互证法&对问卷调查数据、教师的访谈和研究者的观察记录进行分析，验证量规的应用效果。

First,detailed analysis is made to demonstrate the local convergence induced by improper application of surrogate model.Then niching micro genetic algorithm is used to optimize the expected improvement function,the optimal as the sampled point updates the Kriging model.

首先分析了代理模型使用不当引发的局部收敛问题，然后采用小生境微种群遗传算法求解EI函数来得到校正点，用以更新Kriging模型。

Methods 525 medical graduates from three medical collegeS were sampled through the cluster sam, piing and investigated by frame questionnaires on suicide attitude and employment pressure.

方法在3所医学院校，按照整群抽样的方法，以525位医学毕业生为调查对象，采用结构式问卷对其进行自杀态度及就业压力方面的调查。

Furthermore,twelve standard quadrates of nine formations were sampled,and the data on the community structures were obtained.

通过对其中9个主要群落类型12个样地的样方调查，得到了有关群落结构的基本资料。

Once you've sampled the country life,you won't want to live in the city.

一旦你体验了乡村生活，你就不想再生活在城市里了。

It is of great theoretical and practical significance for practical control systems, especially for high speed sampled systems.

对实际控制系统，尤其是对高速采样系统来说具有十分重要的理论意义和实际意义。

Each of us seems to have sampled all the different varieties of human experience.

我们每个人似乎都已体验到了人的各种各样不同的经历。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。