查询词典 sampling methods

Methods Questionnaire survey was conducted with stratified cluster sampling.

方法采用分层整群抽样的方法，进行无记名问卷调查。

Methods:Random cluster sampling method was used.2 763 subjects were studied with a self-reported questionnaire.

采用整群随机抽样方法，对2763名学生通过自填问卷的方式进行了调查。

Methods With stratified cluster sampling method,1?

采取分层随机抽样方法，对沈阳市2所大学1？

Methods By cluster random sampling method,a total of 21 kindergarten children in Meizhou were taken.

方法采用整群随机抽样的方法，抽取梅州市21所幼儿园的全部在园儿童，采用自拟问卷和克氏行为量表进行调查和评定。

Methods Seventy-five stu-dents were recruited based on cluster sampling for this study.

目的 探讨健康教育对护理本科生艾滋病知识和态度的影响。

Methods A questionnaire investigation was carried out among pupils, parents and teachers by cluster sampling.

采用整群抽样对学生和家长教师进行问卷调查。

Methods 1118 students in 4 senior high schools in Dongcheng District of Beijing were sampled by random cluster sampling.

方法采用整群随机抽样的方法，抽取北京市东城区4所中学的高中一、二、三年级各2个班，共1118名学生，用中学生心理健康诊断测验量表进行测评。

From the perspective of covering points in high-dimensional space, we discussed the theory of constrictive PONN based on knowledge rules. PONN's general constructive algorithm and its two special methods based on random sampling and barycenter rules respectively were proposed in this paper.

从高维空间样本点覆盖的角度，讨论了基于知识规则的构造性优先排序神经网络算法的原理，提出了网络构造过程的一般算法以及基于随机取样规则和重心点规则的两个实例算法。

The design of the sampling rate conversion sub-module includes that of interpolator,decimator and shaping filter,during the course of which,the researcher choose different methods,comparing their corresponding spectrum masking performance of the transmitter as well as EVM and PER performance of the receiver respectively to choose an appropriate shaping filter.

在设计当中，作者选择了不同的方法，通过比较发送端的频谱屏蔽性能以及接收端的误差向量幅度性能和误包率性能选取合适的成形滤波器。

Methods Random cluster sampling method was adopted to select 6593 people of 3 villages as respondents of dermatosis epidemiological investigation.

采用随机整群抽样方法，选择3个自然村的6593人作为调查对象进行皮肤病流行病学调查。

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。