查询词典 cluster sampling

Then it puts forward the innovative mode of self-organization's industrial cluster which consists of the self-stabilized course, the self-created course, and the self-conducted course, the three of which develops to realize the self-development, self-renewal and self-creating of industry cluster.

提出自组织的产业集群创新模式：由自稳定过程→自创生过程→自重组过程组成，实现产业集群自我发展、自我更新、自我创造。

In cluster group analysis, the four kinds of color-flowered were divided into 2 styles; at the first, the red color and red-white color were grouped together, then they grouped with purple color into one cluster and the white color was single.

共筛选出12个特异引物，扩增出84条带，具有特异性的谱带为28条，占总带数的33%，在聚类图分析中，把4种花色一串红划分为两大类：首先是红色和红白双色聚为一类，然后和紫色聚在一起，白色单独为一类。

It is divided into two sections. In the first section, the importance of cluster research and the reason for rare gas proton cluster studying are introduced.

它主要分为两节，第一节介绍簇研究的重要性及惰性气体簇受人重视的原因；第二节是理论方法。

Under the groundwork of model of industry cluster "self-fertility" risk, the paper introduce modularization theory to analyze the mechanism of resistance industry cluster's endogenous risk by modularization, detail by detail, anatomize the four orig...

在&自稔性&风险成因模型分析的基础上，引入模块化理论，分析模块集群抗集群内生性风险的机理，详细剖析了产业集群&自稔性&风险存在的四大根源，并论证了模块化化解这些根源的机理。

First,current research of kinematic properties of the Galaxy as well as their latest results are reviewed.Second,an updated,most complete catalogue of 209 open clusters with galactic longitude,galactic latitude,heliocentric distance,age,absolute proper motion and radial velocity data as well as 41 open cluster only with radial velociyty data is compiled.Also,the spatial distribution of the open cluster system is studied.

首先，本文综述了银河系运动学性质的研究现状，总结了历年来银河系运动学参数的研究结果；其次，本文在对最新疏散星团观测资料和文献进行调研和整理的基础上，编纂了迄今最完整的同时具备银经、银纬、日心距、年龄、绝对自行与视向速度的209个疏散星团样本以及只有视向速度资料的41个疏散星团样本。

This deep image of the Virgo Cluster obtained by Chris Mihos and his colleagues using the Burrell Schmidt telescope shows the diffuse light between the galaxies belonging to the cluster.

克里斯。密合斯和他的同事使用伯勒尔。

METHODS: 5 184 people of non-manual workers and manual workers in city as well as farmers at different sex, aged from 20-59 years, were selected in Shijiazhuang, Cangzhou and Chengde with random sampling of stratified cluster in July 2000. They were assigned into 20-39 year group and 40-59 years group according to age to perform investigation of their physical work, which composed of strength of grasp, anteflexion of body when sitting, standing with single foot when closing eyes, back pressure, vertical jump, 10 m×4 return run, push-up, sit-up and choice of reaction time, etc. RESULTS: 4 800 people were involved in the result analysis.

于2000-07用分层整群的随机抽样方法抽取石家庄、沧州、承德3个城市不同性别的城市非体力劳动者、城市体力劳动者、农民3类职业人群的20～59岁公民5184名，按年龄分为20～39岁组和40～59岁组两组，对其进行体能测查，测查内容包括握力、坐位体前屈、闭眼单脚站立、背力、纵跳、10m×4往返跑、俯卧撑、仰卧起坐、选择反应时等。

Methods:From 1987 to 1992,hospital-based cluster sampling method was adopted for collecting data.

采用以医院为基础的监测方法收集资料。

A total of 15 838 nationally representative subjects aged 35 to 74 were selected with multistage cluster sampling.

共调查了35～74岁的成年人15 838人。

The samples were collected by way of cluster sampling and 798 were available.

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The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。