抽样
- sample;specimen;samples draw
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[sample] 从统计总体中,任意抽出一部分单位作为样本,并以其结果推算总体的相应指标
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该调查在英格兰和威尔士随机抽样了2,000人。
The survey used a random sample of two thousand people across England and Wales
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这是一份抽样工作,报酬很多。
It was a sample job and the reward was so large .
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在被抽样调查的孩子中,12%说他们喜欢猫胜过喜欢狗。
12 % of the children sampled said they prefer cats to dogs .
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你们一定收到了质量低劣产品的到货抽样。
No doubt you 've received the outturn samples of the inferior quality goods .
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加强进口冷链食品新冠病毒风险监测截至2021年1月13日24时,全国海关共抽样检测样本近130万个,检出核酸阳性结果47个。
By Wednesday , approximately 1.3 million cold-chain products had been sampled for nucleic acid testing , with 47 tested positive .
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N(0,1)随机变量的一个快速抽样方法
Fast density & resolving sample method for n ( 0,1 ) random variate
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利用人口GIS,可以拓宽抽样调查和专项调查应用领域;
Broaden the applications of sampling investigation and special investigation ;
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LED显示屏检测的抽样方法探讨
Research on Sampling method of Testing LED Display
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抽样率转换的分数阶Fourier域分析
Analysis of Sampling - Rate Conversion in the Fractional Fourier Domain
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开关电流(SI)技术是一种新的模拟抽样数据处理技术。
Switched current circuit ( SI ) is a new technique for analog sampled data processing .
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基于抽样和BloomFilters的长流检测
Elephant Flow Detection Based on Sample and Bloom Filters
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遗传算法在FIR滤波器设计&频率抽样法中的应用
An Application of Genetic Algorithms in FIR Filter Design with Frequency Sampling Method
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报文抽样技术是高速网络流量测量和网络QoS管理中使用的一项关键技术。
Packet sampling measurement is a key technique in high-speed network traffic measurement and QoS monitoring .
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用Excel制作统计随机抽样教学课件
Making Statistic Random Sampling Teaching Courseware with Excel
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利用线性抽样方法重建Dirichlet边界条件声波散射区域
Linear Sampling Method for Reconstructing the Acoustic Scattering Region with Dirichlet Boundary
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经典的Shannon抽样定理有许多应用和推广。
The classical Shannon sampling theorem has resulted in many applications and generalizations .
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神经型烟碱性胆碱能受体α4亚单位基因多态位点1860(C→T)与吸烟的相关性以流行病学和病例调查为基础的抽样调查
Correlation of polymorphisms in the neuronal nicotinic acetylcholine receptor alpha 4 subunit gene 1860 ( C → T ) with cigarette smoking : Sampling survey based on epidemiology and case investigation
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其抽样方案有E-mail地址抽样、固定样本抽样、弹出窗口式抽样、预先电话抽样、完全分开式抽样等等。
The sampling plan includes E-mail address samples , fixed samples , pop-up windows , telephone samples in advance and complete open samples .
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由于可靠度无法获得实测值,本文用MonteCarlo抽样分析方法来作为校核,验证改进JC法的计算精度。
Because reliability can 't be determined in practice , the paper uses Monte Carlo Method as the revision .
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关于二次抽样方案的ASN的极值
On the extreme values of asn 's of double sampling plans
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文献[2]中给出了抽样分布为二项分布、先验分布为Beta分布的Bayes决策准则。
The Bayes decision criterion of sample distridution as binomial distridution and prior distribution as Beta distribution is given in document ( 2 ) .
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PPS系统抽样设计是国际上比较流行的设计,它在实践中有着广泛的应用。
Systematic PPS sampling design is a kind of popular design in the world that is widely applied in practice .
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方法:按国际牙齿美学指数(DAI)调查项目及标准,采用随机抽样方法,对330名12~18岁学生进行测量计算。
Methods : Three hundred and thirty students were investigated according to the standards of the Dental Aesthetic Index ( DAI ) survey .
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T&P-Ⅲ分布的累积概率值p是由数表给出,具体做法是由给定的Cs值和抽样数据x的标准化变量φ值在数表中查得p值。
T - the numerical table giving P-values , cumulative probabilities of the P - ⅲ distribution according to given Cs and φ - values , standardized variables of the sample data , x 's.
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在Fourier关系下,通过抽样一个给定的阵列图,就能使用FFT(快速Fourier变换)得到其近似连续的阵列分布。
Under the Fourier relation , we can use the FFT ( Fast Fourier Transform ) to obtain the nearly continuous array distribution by sampling a given array factor .
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方法:整群抽样选取黑龙江省9个市(地)为样本地,利用SPSS统计分析1993~2002年病残儿医学鉴定情况。
Methods : The data from medical expertise of disable infants were selected in nine cities of Heilongjiang from 1993 to 2002 and were studied by SPSS .
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目的探讨西安市老年人日常生活活动能力(ADL)受损情况及其主要影响因素,方法通过分层整群抽样。
To explore the damage of the activity of daily living ( ADL ) of the elderly in Xi'an and its influencing factors .
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系统页级抽样优于全表扫描或贝努里(Bernoulli)抽样的地方是它节省了I/O。
The benefit of system page-level sampling over a full table scan or Bernoulli sampling is the savings in I / O.
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文中介绍了基于lagrange算子的成形滤波器的设计方法,并与窗函数和频率抽样设计进行了比较。
This paper introduces the design of the pluse-shaping filter based on the Lagrange multiplier and compares it with the methods of the windows and the frequency sampling .
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用基于曲率抽样的拓扑矩形阵列进行NURBS曲面拟合并用多点成形方法成形工件;
Non-uniform rational b-spline ( NURBS ) surface fitting based on an extracted topology array was made and the method of multi-point forming was used to form parts .