查询词典 sampling fraction

Based on the characteristics of the parallel sampling monitor combined with SYC-- III peto tube, a calculating program for parallel sampling of stack dusts has been compiled, which is to some extent versatile .

结合SYC--Ⅲ型皮托管平行采样测试仪的特点，编制了具有一定通用性的烟尘平行采样计算程序。

Phase theory analysis of spatial integral sampling provide theoretical basis for under sampling aliasing reduction.

空间积分抽样相位理论分析为消减欠采样产生的折叠混淆效应提供了理论依据。

The data were collected from the public communities in random sampling and college students in subjective sampling. The survey were conducted in three stages, including pre-survey, pilot survey and main survey; response rate was 71%; and 956 valid copies of questionnaire were collected.

以社会公众和在校大学生作为研究对象，分别采用方便抽样和主观抽样，进行了三阶段的问卷调查，包括预试、初试和主试，问卷回收率71%，共收集有效问卷956份。

The probability of feasibility of the sampling method is analyzed and the required sampling size to obtain this probability is also derived.

本文同时分析了该样本方法求得的解的可行性概率，并估计了为达到这一可行性概率所需的样本的下界。

Among probability sampling methods, what kinds of research conditions are more appropriate for each sampling method

什麼样的情况下，适合用机率抽样方法简单随机抽样有4种方法：1。简单随机抽样2。分层随机抽样3。系统抽样等距抽样

Students will learn Descriptive Statistics, Probability and Random Variables, Probability Distributions, Sampling and Sampling Distributions in Statistics.

同学们将在统计学中学习叙述统计量的意义与计算、机率与随机变数、机率分配、抽样与抽样分配等基础统计方法。

Besides correct sampling procedures, proper sampling frequency is necessary to monitor the oil condition and the wear trends of machinery components.

除了要保证正确的取样程序外，合适的取样频率也是检查润滑油状况及设备零件的磨损趋势所必须的。

Besides correct sampling procedures, proper sampling frequency is necessary to monitor the oil condition and the wear trends of machinery component s.

除了要保证正确的取样程序外，合适的取样频率也是检查润滑油状况及设备零件的磨损趋势所必须的。

Besides correct sampling procedures, proper sampling frequency is necessary to monitor the oil condition and the wear trend s of machinery components.

除了要保证正确的取样程序外，合适的取样频率也是检查润滑油状况及设备零件的磨损趋势所必须的。

Methods Population Proportional to Size sampling method was employed in sampling.

方法2005年11~12月采用分层、三阶段与规模成正比的容量比例抽样方法获得调查对象，采用统一调查问卷由统一培训的调查员入户进行面对面调查。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。