查询词典 small sample

Compared with the maximum likelihood estimation which is commonly used for type-I censored data in engineering, the presented method can reach a high precision by simple calculation, and the estimators show best unbiased property with small sample.

与目前工程中常用的极大似然估计(maximum likelihood estimation， MLE)方法相比，文中方法所得估计量不但在大样本而且在小样本情况下也具有最佳无偏性质，且计算简单、精度高，便于工程应用。

To solve the small-sample problem in the hydroelectric generating unit,SVM is introduced,and a new diagnosis model of least squares support vector machines based on wavelet decomposition with energy extraction is proposed in this paper.

0引言近年来，水电装机容量在电力系统中所占比重越来越大，水电机组的可靠性和安全性对电力系统稳定可靠运行的影响日益加强。水电机组故障诊断也成为工程应用界广泛关注的热点问题。

The surface of the ink-jet printing images are often very large, some business card printing and membership card on making it theflaw after amplificatory output will become very obvious and exaggerated, which also cannot pass through a small sample to find out, so the image inside the ink-jet printing, be sure to zoom in up to 100 per cent went through it again.

喷绘图像的图不面不常很不小，一些在制卡和会员卡制作品上不易发掘的弊端不扩不小输入后会变得很明显而浮夸，而这不不面又无法堵住不小样去发掘，因此喷绘图像在制作达不败必定给不扩不小到100％澈底查抄一遍。

The result showed that farinoyroph E and visco amylo graph R have many advantages such as simple construction,high automation,quick measurement,small sample weight and low cost.

结果表明，新仪器具有结构简单、自动化程度高、测定时间短及样品用量少等优点。

If there is evidence of cancer, the doctor may also use the colposcope to take a small sample of tissue, which is then tested in a laboratory.

如果有证据证明的癌症，医生也可以使用阴道镜采取小样本的组织，这是测试，然后在实验室里。

The results showed that the determination coefficients of the models for oil and erucic acid content in different small-sample rapesee...

结果表明：油菜籽各小样品含油量模型的决定系数(R2)从93.93%到96.93%不等，均方差从0.56到0.79不等；油菜籽各小样品芥酸模型的决定系数(R2)从96.91%到98.42%不等，均方差从1.73到2.43不等。

You run a small sample of your fraction , now very reduced in volume and quite clear on an isoelectric focusing gel.

你在等电聚焦胶上，跑少量的非常透明的所得样品。

"Any new study should be carefully evaluated in a systematic fashion before its conclusions are accepted and a new therapy is applied to patients," Laine writes, noting difficulties in Jensen's study including unequal distribution of confounding variables, outliers, small sample size, endpoints, and premature discontinuation.

Laine写道：「任何一项新的研究，在结论被认可以前，在将一种新疗法应用于患者以前，应该以系统的方式被仔细评估。」。他还指出Jensen研究的难点包括：混淆变量的不平等分配，局外人的参与，样本小，终点，以及研究的提前终止。

"Any new study should be carefully evaluated in a systematic fashion before its conclusions are accepted and a new therapy is applied to patients," Laine writes, noting difficulties in Jensen's study including unequal distribution of confounding variables, outliers, small sample size, endpoints, and premature discontinuation.

Laine写道：「任何一项新的研究，在结论被认可以前，在将一种新疗法应用於患者以前，应该以系统的方式被仔细评估。」。他还指出Jensen研究的难点包括：混淆变数的不平等分配，局外人的参与，样本小，终点，以及研究的提前终止。

Shortcomings of this study include the small sample size and the 36% crossover from nonoperative treatment to surgery.

这一研究的不足主要包括样本含量较小，36%的患者从非手术治疗改为手术治疗。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。