调查表明,布莱顿居民的平均寿命为78岁,比15个抽样城市的居民平均寿命长一年。
It said Brighton residents lived to an average of 78 years, a year more than the average of the 15 sampled cities.
而页级的抽样则可以显著减少I/O,因为它只读取一定百分比的数据页。
Page level sampling reduces I/O significantly since it reads only a percentage of the data pages.
行级的抽样读取所有数据页,但是只考虑每页上一定百分比的行,因此只包含相应xda页面中的一部分。
Row level sampling reads all data pages but considers only a percentage of the rows on each page, and therefore only a subset of the corresponding XDA pages.
有两个因素会影响adc:可用于抽样的最小(阈值)数据量(adc _ THRESHOLD)和抽样缓冲区中有用数据的最小百分比(adc_minpct)。
There are two factors that affect ADC: a minimum (threshold) amount of data is available for sampling (ADC_THRESHOLD) and a minimum percentage of useful data in the sampling buffer (ADC_MINPCT).
无论选择多大的抽样百分比,runstats允许对行(Bernoullisampling)或页面(system sampling)进行抽样。
Whatever sampling percentage you choose, runstats allows you to sample rows (Bernoulli sampling) or pages (system sampling).
根据设备的特点及分层抽样理论,将分别比估计应用于机器设备整体评估中。
According to the characteristic of equipment and stratified sampling theory, the separate ratio estimator is applied to the appraisal of machinery and equipment.
针对序贯概率比检验(SPRT)无法控制抽取样本量等不足之处,提出了一种改进的抽样检验方法——序贯网图检验。
This paper proposed a new sampling plan, the sequential mesh test, in order to overcome the disadvantages of the widely used Sequential Probability Ratio Test (SPRT).
采用窗函数法、频率抽样法和切比雪夫最佳一致逼近法,通过调用Matlab信号处理工具箱中的函数设计低通数字滤波器。
By using MATLAB signal and using window method, frequency sampling and Chebyshev approximation the design of low pass digital filter in the toolbox have been processed.
本文讨论了如何合理地选择辅助指标进行比估计以提高抽样调查的精度,并给出了判断指标优劣的条件。
This paper discusses how to choose proper auxiliary index to improve the precision or sample inspection and also gives the conditions to judge the index between good and bad.
百分比抽样转换通过选择转换输入行的百分比来创建样本数据集。
The Percentage Sampling transformation creates a sample data set by selecting a percentage of the transformation input rows.
这个指标描述了由异质性而非抽样误差引起效应变异的百分比。
This describes the percentage of the variability in effect estimates that is due to heterogeneity rather than sampling error (chance).
论述了购进物资的验收办法中采用百分比抽样不合理。
It is analyzed the non - reasonability by means of sampling in percentage in inspection of incoming Products.
在病例对照研究中,是否可用暴露比值比(EOR)作为CIR或IDR的无偏估计,取决于抽样方法和疾病率高低。
It depends upon the sampling methods and the size of the disease rate whether exposure odds ratio (EOR) in case-control studies can be used to estimate the CIR or IDR.
但到目前为止,地质数据的抽样检查基本上采用百分比抽样方案及简单随机和分层抽样方法。
However, percent sampling has been mainly used for sampling inspection of geological data till now.
而且,由于没有对纳米比亚访问是不完整的抽样海鲜佳肴它提供一个访问已任的酒店餐厅。
And since no trip to Namibia is complete without sampling the seafood delicacies it has on offer, a visit to either of the hotels restaurants.
由于网格法没有考虑水土保持措施因子,调查得到的土壤侵蚀量结果比采用抽样调查法得到的结果偏大。
Because the soil and water conservation factor was not concluded in net method, the soil erosion modulus calculated with net method was higher than that calculated with sampling survey method.
由于网格法没有考虑水土保持措施因子,调查得到的土壤侵蚀量结果比采用抽样调查法得到的结果偏大。
Because the soil and water conservation factor was not concluded in net method, the soil erosion modulus calculated with net method was higher than that calculated with sampling survey method.
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