SQS USES message sampling based on weighted random distribution, and it returns messages only from the sampled subset of servers when you query for messages.
SQS使用基于加权随机分布的消息取样，在查询消息时，它只从取样的一部分服务器返回消息。
Although random sampling used for many surveys fails to cover large segments of the population, the procedure nonetheless offers insight into voting and consumption patterns.
虽然许多调查所用的随机取样不能覆盖大部分人口，但是这一过程使人们能更深刻地理解选举和消费的模式。
In this project the group categorized a random sampling of blog posts and weighed words for their emotional charge.
在这个研究项目中，研究团队会对随机抽样的博客文章进行分类，并对包含情绪词汇进行衡量。
The colognes and perfumes tested were a random sampling of products the average consumer might find at a department or drugstore.
古龙水和香水的检测是在任意一个顾客的产品或者在一个企业或者一个化妆品店随机进行的化学测试。
Methods: The stratified sampling and cluster random sampling methods are used in this survey.
方法：本研究采用分层随机抽样方法和整群随机抽样方法。
The survey was completed on the basis of combining stratified sampling and random sampling, collecting 1005 valid samples in total.
调查在分层逐级抽样法与随机抽样法相结合的抽样基础完成，共收集有效样本1005个。
Methods an investigation was made 1 000 old people aged 60 and upwards by random sampling and calling at the house.
方法采用整群随机抽样并进行入户调查的方法，对1 000名60岁及以上老年人进行了调查。
In this paper, several new random sampling methods that avoid the calculation of trigonometric and all other complicated functions are developed.
在本文中，设法避开计算三角函数和任何其他复杂函数的一些新的随机抽样方法被提出来了。
The data sampling include two kind: free sampling adapted to random signal and pretrigger sampling adapted to impact signal.
数据采集包括自由采集和预触发采集两种，分别应用于随机信号和冲击信号的采集。
Methods:The articles packed with medical ripple paper and full cotton were divided into two groups, then cultivated bacterial of the articles by random sampling.
方法：将医用皱纹纸与棉布包装物品分组，随机抽样进行细菌培养，并同时进行成本、性能比较。
The circuits revelent to data acquisition system such as trigger circuit, the circuit of short time generator in random sampling etc, are designed, simulated and adjusted.
数据采集系统触发电路、随机采样短时间产生电路、存储器地址计数器电路等相关控制电路的设计、仿真和调试；
Methods a questionnaire survey was conducted among the clinical doctors selected by stratified cluster random sampling from grade 1, 2 and 3 hospitals in Guangzhou.
方法采用分层整群随机抽样方法，询问调查抽中的广州市1级、2级和3级医院的一线临床医生。
In this system, the signal sampling includes two kinds, free sampling and trigger sampling which corresponded to contiguous random sample and impact signal respectively.
信号采集模块包括自由采集和触发采集两种，分别适用于连续随机信号和冲击信号的采集。
Methods The migrant workers aged 18~60 in one east city were chosen by stratified random sampling, and surveyed by a questionnaire about knowledge, behavior of AIDS, and blooded to test HIV antibody.
方法采用分层随机抽样的方法，对东部沿海某市18~60岁外来务工人员进行问卷调查，收集艾滋病知识和行为的信息，并采集静脉血进行艾滋病病毒抗体检测。
Firstly, the Gauss map of points on the cylinder and a random sampling method are used to compute the rotation axis equation of the simple articulator.
首先通过构造圆柱面上点的高斯图和任意采样的方法，计算出简单牙合架转动轴线方程。
CONCL USION: the calculation formulas of multiple - stratifying and clustering random sampling are theoretically set up.
结论：推导并建立多重分层、整群随机抽样误差的计算公式。
The manufacturing deviation of grids structures was assumed to be in normal distribution, and the normal random sampling was realized by acceptance-rejection method.
假定网架结构制作偏差近似服从正态随机分布，利用舍选法实现了正态随机变量的抽样。
Methods Simple random sampling method was used to investigate the Suzhou local residents and migrant workers.
方法采用单纯随机抽样调查的方法对苏州当地居民及外来务工人员进行调查。
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。
Using the Poisson sampling, the sampling process is more random, and it can show RTT variation character well.
采用泊松采样使得采样过程更加随机，更能体现RTT的变化特征。
METHODS Questionnaire survey is stratified and random sampling method in the form.
方法采用分层随机抽样的方法以问卷的形式进行调查。
The multiplication of correlation could be implemented just by pseudo random gating sampling (analog) or data reservation control and rejection (digital).
相关处理乘法可简单地用伪随机门控采样(模拟)或伪随机控制数据保留与剔除(数字)方法实现。
METHODS: Clustering random sampling method was launched among the drugstore consumers in 16 districts of Beijing, the results were statistically analyzed, and then the Suggestions were provided.
方法：采用分群随机抽样方法，对北京市16个区县的药店消费者进行影响购药行为相关营业员因素的问卷调查，并就调查结果进行统计分析，进而提出建议。
The current situation and regional differences of livestock and poultry waste in Zhejiang province were investigated and analyzed through random sampling, judgment sampling and department visiting.
通过随机抽样调查、判断抽样调查和部门单位走访，对浙江省畜禽养殖废弃物现状和区域差异进行了调查分析。
Methods With the method of cluster stratified random sampling, a questionnaire survey was conducted in medical and non-medical higher-educated school in Jilin city.
方法采用整群分层随机抽样的方法，对吉林市某医学院校及非医学高校的在校大学生进行问卷调查。
METHODS: a total of 283 families were investigated by random sampling, and the results of investigation were analyzed statistically.
方法采用非概率随机抽样方法，选取283户家庭进行调查，并对调查结果进行统计、分析。
By means of random sampling, the physique of 140 people surveyed and evaluated. out of the staff and workers in Zhejiang Ocean University.
采用随机抽样的方法，对海院140名教职工进行了体质测定和评价。
In this study, collected 732 students through random sampling, and questionnaires were to examine the relationship of communicative attribution, social support and school belonging.
本研究通过随机抽样的方法抽取732名中学生，对其进行问卷调查，以探讨中学生交往归因、社会支持与学校归属感之间的相互关系。
Different priority rules are adopted in the random sampling procedure, and a statistical test shows that they affect the performance of the proposed random sampling method.
通过对比分析，说明不同的任务优先规则对随机抽样算法具有不同的影响，其中采用MINSLK等优先规则的随机抽样算法能够有效地缩短项目平均工期。
During the course of cluster sample verification, systematic sampling and stratified sampling "s accuracy are prior to simple random sampling" s.
群样本检验中，系统抽样群样本检验和分层随机抽样群样本检验的效果优于简单随机抽样群样本检验。
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