sample number

Validity is influenced by reliability, test length, difficult, and sample number etc;

信度、难度、测验长度和样本含量等都直接影响效度；

In sampling, we choose a small number of items which we think are typical of the whole and examine the sample.

在采样时, 我们选择少量我们认为是代表整体的东西,并对这个样本进行研究.

MaxEnt should be used with caution because of some restrictions, including sampling area at the anchor scale, sample plot number, historical disturbance factors, evenness of species distribution and heterogeneity of sample unit.

同时，在使用最大熵方法的时候必须注意一些影响其估计精度的限制性条件，包括锚定格局上的取样面积、调查的样方数目、历史干扰因素、物种分布的均匀程度及取样的异质性。

From the PLM sample, Monitor collects the useful information, such as the number of ECR status inquiry transactions in one month, the number of ECRs by status, and so on.

在PLM示例中，Monitor收集有用信息，比如一个月内ECR状态查询交易的数量、某个状态下的ECRs数量，等等。

A contract shall state clearly the relevant patent number or patent application number or the trademark registration number and shall attach a sample of the trademark.

合同应当写明有关专利号或者专利申请号、商标注册号和附具商标式样。

The number of germinable seeds per soil sample ranged from 45 to 305 with an average of 102. Seeds of perennial grasses, perennial forbs and annuals accounted for 46 57, 51 96 and 1 47 percent of the total seed bank, respectively.

每样中的可萌发种子量变化于45到305之间，平均102/样。多年生禾草、多年生杂类草及1年生植物的土壤中种子量分别占总可萌发种子库的46.57%、51.96%和1.57%。

Mapping ordered eigenvalue points of sample covariance matrix of the observation data onto Hough parametric space, the number of eigenvalues of noises can be estimated by detecting the peak points on Hough parametric space, and thus the number of signal source is determined.

该方法通过Hough变换将观测数据的采样协方差矩阵的排序特征值点投影到Hough参数空间，通过检测Hough参数空间中积累的峰值来估计噪声特征值的数目，从而确定信源的个数。

You can drag and drop field buttons to the sample chart. Double-click a number or date field in the chart to change how the chart will summarize or group data.

请将字段按钮拖放到示例图表中。双击图表中的数字或日期字段可以改变汇总或分组数据的方法。

When the predictive bank number is chosen as the correlation dimension of the system, the average prediction error of the memory-based predictor is small, which also decreases as the sample number increases.

选取系统的关联维数作为预测阶数时，基于记忆库预测方法的平均预测误差较小，且其预测误差随样本容量的增多而减小。

When tagging a large number of categories with high price of the sample, combined with the incremental learning theory is an effective way to solve the problem.

当获得大量带有类别标注的样本代价较高时，与增量学习理论结合是解决问题的有效途径。

The application of homa model and minimal model method of reduced sample number on the insulin resistance

稳态模型和最小模型在胰岛素抵抗中的应用

Disturbed by random selection within a certain number of particles in the sample, calculate the sample mean and variance of the target space, which is proposed for the maximization and minimization problems of the robust model ofa single target, and extended to multiple targets. 4.

通过随机选取粒子扰动范围内一定数量的样本，计算出样本目标空间的均值和方差，由此提出了针对最大化和最小化问题的鲁棒模型，并推广到多个目标的优化命题。

To investigate the performance characteristics of these fins, 9 single row finned tube heat exchangers sample were tested in a suction opened circuit thermal wind tunnel for a number of geometers.

为了考察这类翅片的性能特征，对9种不同几何参数的单排肋管式换热器样件在吸风式直流热风洞内进行了实验。