抽样
- 与 抽样 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Methods A cluster stratified sample of315undergraduates were investigated with a closed questionnaire,and301questionnaires were available.
采用分层整群抽样法，抽取贵州省在校大学生315名进行无记名封闭式问卷调查，获得有效问卷301份。
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Methods A stratified cluster sample of1007college students were questionnaired.
采用分层整群抽样的方法，对广州市1007名大学生进行问卷调查。
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Methods A cluster random stratified sample of404medical college students were investigat-ed with a self-administered questionnaire.
采用分层整群抽样方法对404名医学生进行自填问卷调查。
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Objective To study the interrelation of life habit,knowledge and consciousness in preventing infectious disease,and to provide evidence for health education of infectious diseases.Methods A stratified cluster sample of1007college students were questionnaired.
目的 了解学生日常生活习惯、传染病防治知识、防治意识的状况及其相互关系，开展大学生传染病防治健康教育提供依据方法采用分层整群抽样的方法，对广州市1007名大学生进行问卷调查。
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Methods A stratified random cluster sample of 17269 students in China were investigated with the children and adolescents' QOL scale according to the census data in 2000, and the urban and country norm of the scale were respectively established.
依据2005年第5次全国人口普查资料，在全国进行多阶段分层整群抽样，分别建立城市和农村2套常模。
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In this study, stratified sampling is used to select samples in Gansu Province.
本研究采用分层抽样的方法，在甘肃省四个县进行调查和分析。
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Finally to Stratified Sampling improvement of technology put forward some views.
最后对分层抽样技术的改进提出了一些看法。
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Methods With stratified clustered sampling method, 375 college students were chosen to complete the questionnaire.
采用分层随机抽样方法，在杭州市的大学中抽取大学生375名进行问卷调查。
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Methods Study subjects were selected through stratified sampling and data were collected through questionnaire and physical examination.
方法］采用分层整群抽样的方法获取研究样本，采用问卷调查和体检相结合的方法收集相关信息。
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Methods Based on stratified sampling, 363 medical facilities were selected to conduct the survey.
采取分层抽样方法在全国范围内抽取363家医疗机构开展调查。
- 推荐网络例句
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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。
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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。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。