查询词典 sampling error

In a large population, the probability of sampling error is small and little change to the allele frequencies is expected, even over many generations.

在一个大群体中，抽样误差的概率小，甚至经过许多世代等位基因频率的变化都很小。

The study inchcates that the best error pulse width and the competition pulse width are proportional to the sampling period to us and the modulation degree of SPWM; the number of competition pulse are dependent on the slop of us.

均与模数转换的采样周期和调制深度成正比，与载波比成反比；竞争脉冲的个数由us的斜率决定。

Because of random sampling error, it is impossible to learn the exact value of b using only the information in the sample.

由于随机取样误差的存在，我们不可能通过样本知道b 的准确值。

Several even ts,that affect genetic variation during ecological restoration,such as sampling error and small population size (bottleneck or founding event and subsequent inb reeding and genetic drift),were extensively discussed.

分析 了生态恢复过程中影响种群遗传变异的因素，主要有取样误差和小种群效应(主要是瓶颈或建立者事件及其以后的近交和漂变)；在进行生态恢复时也要考虑局部适应，对影响种群局部适应的因素也进行了分析。

And the relative error characteristics of some critical parameters in asynchronous sampling are examined.

根据周期信号的传统描述，讨论了过程信号时频参量的周期域表示方法。

Furthermore, it increases the sampling error and distorts the distribution, ect.

缺失数据多重估算是目前最为系统和完善的一种方法。

It does not have a sampling error.

它不存在取样误差。

The experimental results are recorded and the sampling error is also analyzed in this paper.

本文还记述了系统测试结果，分析了采样误差。

Notes : Results of the survey are subject to sampling error.

注释 ：此统计调查的结果受抽样误差的影响。

The difference between an estimate and the true value of the parameter being estimated is called the sampling error.

之间的一项估计，真正的参数估计值的差额被称为抽样误差。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。