查询词典 cluster

Like a whirl of shiny flakes sparkling in a snow globe, Hubble catches an instantaneous glimpse of many hundreds of thousands of stars moving about in the globular cluster M13, one of the brightest and best-known globular clusters in the northern sky.

据国外媒体报道，美国宇航局哈勃太空望远镜拍到北部天空中最明亮最有名的球形星团M13，恰似一个天上"雪球"，里面有无数恒星在运动，如同连串的"雪片"在闪烁。

The results of cloud image analysis show that the TBB is lower than 230K (-44℃) when the convection grows most prosperously and the area with the brightness temperature difference of lower than -4℃ corresponds to the place where is most affected by the strong thunderstorm. The center of low value with T≤-7℃ corresponds to the strong echo of radar. There is a good correspondence between the strong convective weather and maximum gradient of TBB, which distributes along the moving cloud cluster. The moving path of strong storm is similar to that of the maximum positive gradient of T.

FY-2C卫星云图定量分析结果表明这次飑线过程对流最旺盛期TBB低于230K(-44℃)；长波红外分裂窗双谱组合T≤-4的低值区与强风暴天气影响区域相对应，T≤-7低值中心与强雷达回波区相对应；强对流天气区域与分布在沿对流云团前进方向的TBB梯度最大区域有很好的对应关系，强风暴天气发生区的移动路径与T正梯度最大区域的移动路径相似。

Methods: The study sample comprised 1 573 35～44 year old and 1 515 65～74 year old Guangdong residents recruited from urban and rural areas through multi stage cluster sampling.

通过多阶段整群抽样方法从城市和农村抽取35～44 岁组1 573 人和65～74 岁组1 515 人为样本，用结构式问卷由经培训的问卷人员进行面对面问卷调查。

Aimed at large-scale hydrophone array signal processing, a project of multilevel cluster processing for large array has been put forward, whose key technic has been discussed in detail.

针对大规模光纤水听器阵列的信号处理要求，本文进一步提出了基于多级集群的大规模信号处理方案，并对该方案的关键技术进行了探讨。

Using the multiplet relative location approach and wave correlation correction, the aftershock cluster of Shunyi earthquake Dec.

运用多重相对定位法和波形互相关技术，对 1996年 12月 16日发生的顺义地震的余震震群进行重新定位，同时使用多种震相，对深度进行约束；并对传统的绝对定位法、多重相对定位法和波形互相关技术的结果进行比较。

The wood structures of Lauraceae were characterized by most diffuse porous; most pores solitary, less multiple and cluster pores; simple and scalariform perforation with few bars; most solitary pore; alternate intervessel pitting; most of rays multiseriate, less uniseriate; all of rays heterogeneous, mostly heterogeneous Ⅲ and Ⅱ type rays; most of axial parenchyma paratracheal type, less banded or marginal type; oil cell and mucilage cell in axial parenchyma cell or ray cell; mostly fiber tracheid and libriform fiber, less septate fiber.

结果表明：除檫木外，其它木材的管孔分布均为散孔材，具较高的单孔率；导管分子穿孔板兼有单穿孔和梯状穿孔2种或者仅具有单穿孔；导管间纹孔式为互列；导管－射线间纹孔式类型丰富，主要为刻痕状和大圆状。木射线有单列和多列射线2种类型，单列射线稀少、短，多列射线数量多；射线组织主要为异形Ⅲ和异形Ⅱ；轴向薄壁组织以傍管状为主，少数有带状或轮界状。油细胞和粘液细胞普遍存在于射线薄壁细胞或轴向薄壁细胞中。木纤维由韧性纤维和纤维管胞组成，部分树种具分隔纤维。

Students will learn Regression Analysis, Multivariate Analysis of Variance, Discriminate Analysis, Categorical Data Analysis, Principal Component Analysis, Canonical Correlation Analysis, Factor Analysis, Cluster Analysis, and Multidimensional Scaling Analysis.

同学们将在本课程中学习回归分析、多变量共变数分析、鉴别分析、类别资料分析、主成分分析、正典相关分析、因素分析、集群分析、多元尺度分析常用的多变量分析模式。

Course contents include the analysis of variance and covariance, multivariate analysis of variance and covariance, principle component, factor analysis, cluster analysis, discriminant analysis, canonical correlation analysis, multidimensional scaling, discrete choice model, and LISREL.

其主要内容包括变异数与共变异数分析、多变量变异数分析、主成份分析、因素分析、集群分析、区别分析、规则相关分析、多元尺度法、二元质量选择模型、及 LISREL 模型。

cluster analysis is one of the important methods of multivariate statistical analysis, and this method has a wide range of applications in many fields.

聚类分析是多元统计分析的重要方法之一，该方法在许多领域都有广泛的应用。

Then, genes are clustered so that the expressions of genes in every cluster can be modeled by a simple ANOVA model with a multivariate Gaussian distribution of residuals.

然后基因在被分组之后，基因在每一组中的表现可以对多维常态分配的残差使用简单的变异数分析来建立模型。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。