查询词典 average deviation

In the western province of Nyanza, one of the most populous parts of the country, edging Lake Victoria, a family's average landholding is 0.8 hectares and the average number of children between seven and eight; the death rate from AIDS has been particularly high.

西部省份恩岩札是肯尼亚人口最多的省份之一，它临近维多利亚大湖。在那里，一个家庭平均的土地所有为0.8公顷（不足2英亩），而一个家庭的平均小孩数为7－8个，因此由艾滋病引起的死亡率在该地区是特别地高。

Through this experiment,it was measured that average diameter of the fundamental frequency light is 2.33 mm in the pattern of ordinary krypton pump,while in he pattern of the laster- diode bar pump the average diameter is only 1.25 mm,and the light field of the later also took on the standard Gaussian distribution,therefore formed the high-bright...

通过实验测量到普通氪灯泵浦方式中基频光的平均直径为2.33 mm，LD 阵列对称泵浦方式中基频光的平均直径仅为1.22 mm，并且呈现标准的高斯分布，形成了高亮度激光输出。实验研究了 Nd：YAG 调 Q 固体激光器的重复频率对 KTP 倍频晶体转换效率的影响。并且，在基频光平均功率11.2 w时，经 KTP 晶体倍频产生5.11W 的532 nm 绿光输出，光-光转换效率达到45.6%。

High-level participation in the company's IR, IR set up organizations, IR three aspects of the quality of personnel, in 2007 listed companies scored an average of 55.49,60.27 and 24.34 respectively, the management level, the average index score of 49.98, indicating China's listed companies in the quality of personnel there IR Less obvious.

高级别公司的红外参与，组织成立了红外，红外三方面的人员素质，2007年上市公司中，取得了55.49，60.27和24.34，平均分别管理水平，平均指数的49.98分，显示中国上市公司在人员素质有红外不太明显。

Average American,在第一段中提到这个词的一句是——that message has not gotten through to the average American, who would rather try switching to "light" beer and low-calorie bread than increase physical exertion.

词组has not gotten through to指的是"在……中并不流行"，这里的意思就是那一信息对于一般美国人来说并没有受到重视。

In order to reduce calculation error, the frequency distribution of average values is used to compute the mixed distribution's digital features of each component distribution, thereinto, the number of the component distribution is determined by AIC, choose the number that meets the minimum value of AIC as the component number of mixed distribution, and the other parameters are estimated by EM algorithm; Secondly, because each component distribution is corresponding to a kind of major gene genotype, according to the values of the average and variance of the each component distribution, we can use the limit error of the normal distribution to plot each individual into the correspondent component distribution, namely into correspondent major gene genotype. Then we regard each major gene genotype as a treatment level of one-way analysis of variances, and the one-way multivariate analysis of variance is carried out to calculate the covariance matrix of major gene effect, covariance matrix of polygene effect, covariance matrix of environment effect and so on; At last, combining the weights of the each component distribution of mixed distribution, we can calculate the variance of major gene effect, the variance of polygene effect, environmental variance and the genetic gain of the quantitative trait.

为减小计算误差，本研究采用均值的频数分布来计算各成分分布的数字特征，其中成分分布个数根据AIC准则，选择使AIC值达到最小的成分分布个数作为混合分布的成分分布数，分布中其它参数的确定利用EM算法来估计；其次，每个成分分布对应一种主基因基因型，根据各个成分分布的均值和方差，利用正态分布的极限误差将每个个体划分到相应的成分分布中，即相应的主基因基因型中，将每种主基因型作为单因素方差分析的一个处理水平，对其进行单因素的多元方差分析，分别计算主基因效应协方差阵、多基因效应协方差阵、环境协方差阵等参数；最后结合混合分布中各成分分布的权重即各主基因基因型的分离比例，计算主基因效应方差，多基因效应方差和环境方差，以及遗传力等参数，进而计算该数量性状的遗传进展。

For more and more people buy houses and cars on mortgage loan in modern society,we build the mathematical models of average monthly installment and average degressive corpus installment by using dynamic system model and the first order linear difference equation ,and with the real example to show its usage in our life,meanwhile it giving us the reasons of differences between this two arithmetic.

针对当前社会上流行的按揭贷款买房、购车等现象，利用动力系统模型与一阶线性差分方程，分别建立了月均等额还款与等额本金递减还款法的数学模型，并结合实例说明其在经济生活中的具体运用，同时还给出了两种算法所产生差额的原因所在。

And the reasonable proposal for the construction the region electrical power system was put forwardThe power load forecast is the basis of the power system planning.With the actual planning of regional development,uses a scientific and effective load forecasting methods forecast plans the local load electric quantity,is an important work to the regional power system planning.This dissertation uses the BP algorithm, proposed a double hidden layer structure artificial neural network to the forecast ultra-short-term power system load.After the simulation with the actual data,the method which this dissertation proposed compared to the traditional linear extrapolation Prediction method average absolute percent error of 2.5 percentage points,ten minute load forecasts achieve the average absolute percentage error are smaller than 2.5%accuracy.

本文利用人工神经网络BP算法，提出了一种双隐层结构的电力系统超短期负荷预测方法，经过对实际数据的仿真实验，本文提出的神经网络超短期负荷预测方法比传统的线性外推法预测平均绝对百分误差降低2.5个百分点，十分钟负荷预测达到平均绝对百分误差小于2.5%的精度。

Results The grinding rate of caculus after one lithotrity was 96.4%, and the average time for caculus to discharge from body was 2.5 weeks; the average operating time was 22 minutes; the hospitatization was 2 days.

结果 110例输尿管结石患者一次手术结石粉碎率为96.4%(106例)，平均结石排净时间2.5周；平均手术时间和术后住院天数分别为22min及2d。

The annual average temperature above 13 degrees, active accumulated temperature 4500 - 5000, frost-free period 190 - 200 days, an average annual rainfall of 600 - 650 mm, loamy soil accounted for 78 percent; tilth PH value of 7.1 - 8.5 between moderate pH, conducive to the growth of various crops.

年平均气温13度以上，活动积温4500——5000，无霜期190——200天，年平均降水量600——650毫米，壤质土占78％；耕层PH值在7.1——8.5之间，酸碱适中，利于各种农作物生长。

By summarizing the distribution of average speed on different types of road and the statistical distribution rule,it is concluded that the distribution of average bus speed in Beijing follows the law of logarithmic normal distribution.

对北京市公共汽车平均车速的在不同类型道路上分布的情况和统计分布规律进行了总结，提出北京市公共汽车平均车速分布遵循对数正态概率分布规律。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样