抽样

In order to avoid being unable to select those residences with unlisted telephone numbers, we first took a systematic random sample of telephone numbers, and then added one to the last digit.

首先先依等比例的原则计算各县市应抽取出的样本数，其次依等距抽样的原则抽出电话号码。为避免未登录电话号码的用户无法被抽中，遂在抽出的电话号码尾数加 1，作为受访的样本户。

Methods Using systematic sample method,103patients and86controls were enrolled randomly the40～60old in type2diabetes in a certain community of Shanghai The study group received both routine treatment and diabetes education,diet regulated,and the control group routine treatment only.

采用系统抽样方法，在上海市某社区40～60岁2型糖尿病患者中，随机选择干预组86例病人，除常规药物治疗，辅以糖尿病健康教育、心理、饮食干预、定期血糖测定等12个月。

The recommended sample size for a systematic random sampling is 500 children.

系统随机抽样的推荐样本大小是500名儿童。

A systematic procedure for sampling subject matter should be described and used.

应当利用并详述对内容抽样的系统化程序。

The outpatients expenses in a teaching hospital in Shiyan were investigated by means of systematic sampling.

本文采用系统抽样的方法，调查了某医院门诊病人费用情况及有关因素。

To undertake a systematic random sampling, one needs to know the total number of households, the average number of children under 5 years of age in a household, and the total population.

要进行一次系统随机抽样，必需知道该人群中的家庭总数，每户家庭5岁以下儿童的平均数，以及总人口。

Methods 3944 persons were selected by systematic sampling in 3 districts.

采取分层随机整群抽样的方法，于2006年10月和2007年9月进行2次调查，以示范路上沧浪区、金阊区、高新区的33个单位、10个社区居民，共计3 944人作为调查对象。2007年9月，以非示范路上某区采取同样方法抽取居民809人进行问卷调查。

All subjects in the sample of 600 individuals were selected by a stratified systematic random sampling method and interviewed by trained interviewers.

本研究采横断面研究方法，以苗栗县所有65岁以上老年人作为研究母群体，采分层随机抽样的方法，共得到600位样本，其中男性302人，女性298人。

Two hundred subjects were selected by systematic sampling from non-English-major sophomores in Southwest Jiaotong University.

调查对象是西南交通大学二年级非英语专业的学生，经系统抽样，选取男女学生各100名完成问卷。

The Two-Stage Systematic Sampling simulation strategy is proposed to sovle the instruction selection problem.

针对上述问题，二阶段系统抽样模拟将详细模拟指令的选择分为两个阶段。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。