方法以修订的《儿童孤独问卷》与自编的《小学生社会创造性倾向问卷》为工具,对以整群取样法随机选取的3至6年级小学儿童共411人进行测查。
Methods Children's Loneliness Scale and Social Creativity Tendency Questionnaire for primary school Children were administered to 411, 3 to 6 graders of primary school by cluster sampling.
更有希望的是,崔政对一群志愿者进行取样检验,发现10 - 15%的人们具有同样的超级抗癌白细胞。
Even more promising, Cui has sampled a group of human volunteers and found that 10 to 15 percent have similar super cancer-fighting white blood cells.
方法对北京市20所中学学生进行预防AIDS健康教育和生活技能培训,在培训前、后采用整群抽样方法获取样本进行评估。
Methods AIDS prevention and life skill training were developed among students in 20 middle schools. Evaluations were carried out before and after the education by cluster samplings.
方法采取典型整群抽样方法抽取样本,由经培训合格的调查员入户调查,对每户的户主或最熟悉家庭情况者进行询问调查。
Methods the stratified randomly cluster sampling was applied by well-trained investigators, and the inquired subject was either householder or the family member who is familiar with the family things.
介绍了应用两个模糊神经网络分两步进行电梯群控系统交通模式识别,提出了利用专家知识获取样本和训练网络的步骤。
Traffic pattern recognition method of elevator group control systems is presented. The method consists of two steps, in which fuzzy neural networks are employed.
方法按分层整群抽样的方法抽取样本,并通过问卷调查的方式收集有关广东省18岁以上居民的伤害信息。
Methods the study sample was got by multi-stage randomized sampling, and the injury information of the inhabitants aged over 18 years in Guangdong province was collected by questionnaire.
方法按分层整群抽样的方法抽取样本,并通过问卷调查的方式收集有关广东省18岁以上居民的伤害信息。
Methods the study sample was got by multi-stage randomized sampling, and the injury information of the inhabitants aged over 18 years in Guangdong province was collected by questionnaire.
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