查询词典 sampling

Probability proportional sampling conducted according to various school sizes was used in this study to select subjects from all school nurses working at the elementary and junior high school levels.

研究采横断性调查法，研究工具为结构式问卷，采邮寄问卷方式以等比例分层随机抽样针对全国各学校单位之学校卫生护理人员进行抽样调查。

The results have been adopted as the reference frame of the multi-stage, PPS (Probability Proportional to Size) sampling design of the 2005 National Health Interview Survey in Taiwan.

本文结果亦已被2005「国民健康访问调查」所采用，做为进分层多阶段、抽取与单位大小成比之等机抽样设计之考。

Methods: The study population was physicians of accredited regional general hospitals in central Taiwan. The amount of samples for all levels hospitals depended on proportional sampling. Totally, 920 copies of questionnaires were issued. Among them, the valid questionnaires were 506 copies and valid response rate was 55%. Data collection was by means of structured questionnaires.

研究对象为中部地区医院评鉴等级为地区级以上综合医院之医师，依比率抽样方式决定各层级医院之样本数，共发出920份问卷，有效问卷共计 506份，有效问卷回收率为 55%，藉由结构式问卷收集资料。

Three methods are adopted to improve the performance of output precision and cross regulation in the multi-output switch mode power supply,including stack wire wound of transformer,output inductance coupling and output proportional sampling.

针对多路输出 DC/DC变换器存在的输出精度与交叉调整率问题，提出了三种改善措施：变压器堆叠绕法、输出电感耦合与输出比例取样反馈，同时给出了设计实例。

With self-compiled "Questionnaire of the life stress on students in university who anticipate that mainland China students study in Taiwan." The survey uses the method of proportional allocation, and the sampling is based on the proportion of total students in 29 colleges.1000 college students were selected as sample subjects and given a questionnaire survey.

本研究系以自编《我国大学生预期陆生来台就学之生活压力调查问卷》为研究工具，研究对象按照各校总学生数进行比例配置取样，随机抽取北部地区29所一般大学日间部大学生1000人，进行问卷调查研究，其中有效样本为937人。

The research targets of the study were the grade-six students of public elementary schools in Taipei County, and the survey through questionnaires was done using stratified proportional sampling, with 1,190 valid questionnaires and valid return rate of 92% from all the questionnaires collected.

研究对象为九十五学年度台北县公立国小六年级学童，采分层比例抽样进行调查，回收之有效问卷计1190份。

The accuracy of measurands estimates are associated with wave length, pulse repeat frequency, correlation coefficient, spectral width, and number of sampling pairs.

偏振参量的估值精度与波长、脉冲重复频率、相关系数、谱宽和取样数有关。

Our methodology is based on the fundamental principles of the phenomenology, hermeneutic and semeiology. For the samples in this study, the data were mainly collected by the purposefulness sampling, interview and inspection method of qualitative research.

在方法论上采用现象学、解释学和符号学的基本观点，在具体做法时采用质的研究方法中的目的性抽样法、访谈法和观察法收集资料。

of this study was based on quantitative methodology, utilizing unstructured interview and purposive sampling.

研究方法是采用质性研究法，使用非结构性访谈及立意取样的方式。

A questionnaire survey and purposive sampling was conducted to collect 573 sample for quantitative analysis.

透过问卷调查法，以立意抽样收集了573份有效问卷进行量化统计分析。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。