您要查找的是不是：
- unrestricted random sample 非约束随机样本
- unrestricted random sampling 无限制随机采样,非限制随机抽样,无条件限制随机抽样
- The interviews were given to a random sample of students. 随机抽选出部份学生进行了采访。
- The opinion poll was based on a random sample of adults. 这次民意测验结果是在对成年人的随机抽样调查基础上得出来的。
- Methods use a random sample of 1000 records to discretize data. 方法使用1000个随机记录样本来离散化数据。
- There are many applications for random sampling. 随机抽样有许多应用场合。
- Methods Stratified chester random sampling. 方法采用分层整群随机抽样的调查方法。
- UB researchers conducted the study in a random sample of 1,555 white and African-American residents of Western New York. 布法罗大学的研究人员随机抽取了1555名生活在纽约西部的白人和黑人，进行了研究。
- restricted and unrestricted random walk 限制与非限制随机走动
- Trigger and Time Inter-plug Circuit is an important module in the random sample Digital Storage Oscillope (DSO). 触发与时间内插电路模块是随机取样数字存储示波器中的重要电路模块。
- The method uses small random samples and the limits of a hyperbola. 该方法采用了小范围随机抽样和双曲线的极限。
- Conduct first article inspection and random sampling inspection. 进行首件检验和抽查检验。
- Some retailers pull 3-4 random samples from each product group. 一些零售商随机从每批产品中抽取3-4件样品。
- We did the random sampling of five pieces per batch of 100. 我们在每批一百件的货品中取五件随机抽样。
- Method A random sample of 116 middle offic ials and 97 low er officials wity the XZW questionnaire. 方法对116名县(处)级和97名科级以下干部进行XZW个性问卷调查。
- Methods To divide into 4 groups from neonate to 13 years, every group has 30 cases in random sample. 方法把新生儿至13岁的小儿分成4组,每组30例,随机抽样。
- Methods: The rate of pigeonhole of 7220 medical records from hospital patients is calculated by random sample. 方法:随机抽取出院患者7220份病案,计算病案归档率。
- The survey in Beijing, Shanghai, Guangzhou three major cities, a random sample of 500 urban residents reached. 此次调查是在北京、上海、广州三大城市，对五百多位城市居民进行随机抽样得出的。
- Methods The multicenter,single-blind,random sample,active-controlled study had been processed in hypertensive patients. 方法用多中心随机单盲平行对照试验方法。贝尼地平(试验组)112例,氨氯地平(对照组)105例。
