方法采用随机抽样的方法调查1021例患者。
Methods Making research on 1021 patients by random sampling.
方法：以分层随机整群抽样的方法，确定调查样本。
Methods: Stratified random cluster sampling method was used to determine the survey sample.
方法采用分层随机抽样的方法以问卷的形式进行调查。
METHODS Questionnaire survey is stratified and random sampling method in the form.
给出变量的归一化分布函数及由此进行随机抽样的方法。
The normalized distribution functions of the variables and their sampling methods are given.
方法：采用分层整群抽样的方法，对育龄妇女进行入户调查。
Methods:Adopt the method of stratified cluster sampling, women were investigated through questionnaire in family.
采取典型抽样的方法对沈阳市行道树进行了全面的群落调查。
Systematic community investigation into street trees in Shenyang was carried out using typical sampling method.
格罗夫斯已经承诺在2010年的人口普查中不使用抽样的方法。
方法采用分层随机抽样的方法，对全院护理病历进行质量评价。
Method Strata randomized sampling method was used to evaluate nursing documents in the whole hospital.
本文利用抽样理论分析了调幅调频脉冲响应抽样的方法及其精度。
This paper analyses sampling method and sampling precision of complex impulse response by sampling theory.
方法在社区采用单纯随机抽样的方法抽取居民200人进行问卷调查。
Methods a questionnaire survey was conducted among 200 people in Luohu District, selected by random sampling.
方法采用整群抽样的方法，对1200名军事飞行人员进行问卷调查。
Methods a questionnaire survey of occurrence of SAHS in terms of random sampling was performed in 1200 military pilots.
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。
The outpatients expenses in a teaching hospital in Shiyan were investigated by means of systematic sampling.
方法采用分层抽样的方法对山东省8个城市65岁及以上老人进行抽样。
Methods Elderly people aged 65 years or over by multistage sampling in 8 cities of Shandong Province were interviewed at home by trained interviewer.
方法采取分层整群抽样的方法对青岛市1 785名儿童进行问卷调查。
Methods a questionnaire survey was conducted to a clustered stratified sample of 1 785 children in Qingdao.
方法1999年在北京市自然人群中采用分层随机抽样的方法进行横断面调查。
Methods in 1999, a cross-sectional study was carried out in a natural population of Beijing, using stratified-random sampling method.
方法使用分层抽样的方法在全国范围内抽取250家医疗机构开展大规模调查。
Methods A large-scale survey was conducted at 250 medical health units based on stratified sampling.
方法：通过分层整群抽样的方法，对某医科大学的818名医学生进行问卷调查。
Methods Choosing 818 students in a medical university with strata cluster sampling and carrying out a questionnaire survey.
方法采用分层整群随机抽样的方法，对13个中签县市39个村(点)进行调查。
Methods Cluster random sampling was used for investigation of 39 villages selected from 13 counties.
本文提出了一种用蒙特卡罗法对路面不平度函数进行抽样的方法，只对相位随机抽样。
In this paper, the Monte Carlo method which only samples the phase is used to produce road surface irregularity.
方法采用分层整群抽样的方法对一所职业技术学院的502名学生进行匿名式问卷调查。
Methods An anonymous survey was conducted among 502 students from a technical college selected by stratified sampling and cluster sampling.
方法：采用分层随机抽样的方法，自行设计问卷，对1000名临床护理人员进行调查。
Methods: Totally 1000 nurses were investigated with a self designed questionnaire using stratified random sampling.
方法采用整群抽样的方法在合肥市某中专学校进行问卷调查，并对有效问卷进行统计分析。
Methods Using cluster sampling, the study was conducted in a secondary technical school in Hefei, and the available questionnaire were analysed.
方法采用整群抽样的方法在合肥市某中专学校进行问卷调查，并对有效问卷进行统计分析。
Methods using cluster sampling , the study was conducted in a secondary technical school in hefei , and the available questionnaire were analysed.
方法应用整群随机抽样的方法对5市941户下岗家庭(3050人)进行入户询问调查。
Methods Totally 941 jobless families (3050 persons) were randomly selected with cluster sampling in 5 cities, and in-depth interview was performed.
为了提高雷达信号的分辨率和抗干扰能力，分析了两种基于混沌映射生成随机抽样的方法。
Two methods of generating random samples based on chaotic maps were studied to improve the resolution and Electronic Counter-Counter Measure (ECCM) of radar signals.
方法采用方便抽样的方法，应用自行设计的问卷对100例急诊留观室病人家属进行调查。
Methods 100 family members of the patients in emergency observation room were investigated with self-designed questionnaires.
采取自我报告式问卷，以整群抽样的方法对北京市某城区1 408名初高中学生进行调查。
Using self-reported questionnaire and sampling to investigate 1 408 secondary school students in urban area in Beijing.
采用随机抽样的方法采集农村井水水样检测；根据《生活饮用水卫生规范》(2001)进行检验。
Well water specimens were randomly sampled in rural areas and were tested according to Drinking water Sanitary Regulation (2001).
方法按照相关调查表要求，对农村供水情况进行普查，供水水质采用分层随机抽样的方法进行监测。
Methods General investigation was adopted to understand the water supply situation in rural areas and stratified random sampling was used to monitor the water quality.
方法随机分层整群抽样的方法，应用症状自评量表（SCL-90）对江苏省农村中学进行调查测评。
Methods Middle School students in Jiangsu Rural Areas were investigated with SCL-90 by stratified sampling.
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