查询词典 cluster sampling

Results (1) From more than 100 primers, 11 primers producing polymorphism and reproduceable bands were selected, 129 bands were amplified.(2) The percentage of polymorphic bands within different populations were 20.9%-55.0%.(3) The cluster map including all samples were obtained by UPGMA. In the map, there were six cluster groups and three individuals outside the groups. The branch with five samples of Zhongjiang Sichuan population were far from other samples in genetic distance.(4) According to the distribution provinces five groups were divided in genetic variance analysis. Genetic variance 80.44% existing within population, 8.29% among populations and 11.27% among groups.

结果 （1）从100多个引物中选择出11个多态性强和重复性好的引物，扩增得到129条带；（2）不同居群内多态位点比率为20.9%－55.0%；（3）用UPGMA法得到所有样本的聚类图，可分为6个主要分支组和3个组外个体，其中四川中江居群的5个样本聚为一组，并与其他样本遗传距离较大；（4）按产地分组，遗传差异的80.44%存在于居群内，8.29%来自于组内居群间，11.27%的遗传差异来自于组间。

Industry cluster is one of the most resultful industry ornizations which could drive the development of the local econmy and upgrade the competition advantage of the enterprises in cluster.

产业集群是区域经济发展的一种卓有成效的产业组织形式，能够提升集群中企业的竞争优势。

In revent years, there are many researches on small and medium-sized enterprisescluster in domestic, but most from the view of how the cluster win the competition advantges, and a few from the forming of the cluster.

改革开放2 0多年来，浙江遵循市场规律发展经济，构造起了在国内相对领先的经济体制和运行机制，培养出了大量颇具活力和市场适应能力的微观市场主体———中小企业集群。

Seventh, case analysis and findings show that, on the one hand, ecological agriculture cluster concept in practice has been successful prototype, the competitive edge is increasingly appear; on the other hand, farmers have a weak sense of clusters, the ability to promote agricultural enterprises is not strong, farmers cooperation organization slackly, the incentive and monitoring mechanisms missing, these influence and has hampered the speed and quality of China\'s regional eco-agriculture cluster construction in a large extent.

案例分析和调查结果表明，一方面，生态农业集群理念在实践中已有成功的雏形，竞争优势也日渐显现；另一方面，农户集群意识淡薄、农业龙头企业带动能力不强、农户合作组织涣散、政府激励与监督机制的缺失等，也在很大程度上影响和制约了我国区域生态农业集群建设的速度和质量。

Seventh, case analysis and findings show that, on the one hand, ecological agriculture cluster concept in practice has been successful prototype, the competitive edge is increasingly appear; on the other hand, farmers have a weak sense of clusters, the ability to promote agricultural enterprises is not strong, farmers cooperation organization slackly, the incentive and monitoring mechanisms missing, these influence and has hampered the speed and quality of China\'s regional eco-agriculture cluster construction in a large extent.

现阶段加快生态农业集群建设应注重做好以下工作：要搞好生态农业集群建设的战略规划；要提升与培养生态农业集群各参与主体的生态经营意识；要注重对生态农业龙头企业的支持与培育；要加强农户合作组织建设；要做好生态农业集群产品质量与品牌建设；要加强与生态农业集群相关的政策法规与制度建设。

The shape and size of the cluster can be adjusted.πconjugate aryl alkynyl thio ethers containing thiomethyl in the end are important compounds. We can use such compounds to get some functional molecules that have good assemblied effect, especially in controlling the shape and the size of the cluster.

设计并合成一些形态多样的π共轭系多-SCH_3功能基的芳炔硫醚类分子对获得一些具有良好组装效果，尤其是能够控制团簇形态或控制团簇尺度有用的功能分子有着重要的理论和实际意义。

The domain component rank cluster tree is established combine rank cluster algorithm with the distance ma- trix of domain component vector.

构件对软件变化性的承载是通过构件组合来实现的，可见，如何准确确定构件之间的密切关系，使组合更具有合理性，是构件技术解决软件变化性的关键问题之一领域工程的易复用性

The "yes" or "no"(1 or 0) of distribution of reptiles in Guangdong Province were regarded as two-state character. The relative coefficient was taken for the similar degree of reptiles in every two zoogeographical provinces. The cluster analysis was taken by group average method. The characteristics of geographical distribution and the comparison between the result of cluster analysis and the geographical distribution of reptiles in Guangdong Province are discussed.

将各种爬行动物在广东4个动物地理省（粤北、粤东、粤西、沿海）分布的有或无作为二元性状，用联合系教来表征每两个动物地理省爬行动物组成的相似程度，以类平均法进行聚类分析，结果表明爬行类在广东各动物地理省的分布受地形明显影响，论述了广东省爬行动物地理分布的特点，并对聚类结果与动物地理区划进行了比较。

To evaluate our clustering results, we compared our results to the SCOP classification. The most popular SCOP family in a cluster is set to the representative family of the cluster. Assigning one SCOP family to multiple clusters is also taken as correct answers.

分群结束后，我们比较其结果与SCOP资料库的分类，以每群中占最多数的SCOP family视为该群的正确答案，且同一SCOP family可同时为多群的答案。

No.2 part includes No.4 and No.5 chapter. In No.4 chapter the paper calculates centrality indexes of the tourism destinations of 13 cities along Silk Road in Gansu. In No.5 chapter the paper analyzes these indexes with Hierarchical Cluster of SPSS 13.0, and adds up ancient ruins of these regions. Abasing centrality indexes of the tourism destinations, the result of Hierarchical Cluster and the concentration ancient ruins of these regions, the paper determines that Lanzhou City and Dunhuang City are No.1 grade tourism central cities, Jiayuguan City and Tianshui City are No.2 grade tourism central cities, Hezuo City Prefecture, Zhangye City and Wuwei City are No.3 grade tourism central cities, Pingliang City, Jingchang City and Linxia City Prefecture are No.4 grade tourism central cities. No.3 part includes No.6 and No.7 chapter.

第二部分(4-5)。首先提出了旅游中心性指数概念，设置旅游中心性指标体系，计算各&节点城市&的旅游地中心性指数，并对这些指数进行聚类分析，然后统计&节点城市&丝路文化遗存旅游资源的集中度，最后采用定性和定量相结合的方法，将丝绸之路甘肃段&节点城市&的中心性指数、聚类分析的结果和丝路文化遗存旅游资源的集中度结合起来进行分析，确定出兰州市和敦煌市为一级旅游中心城市，嘉峪关市+肃州区、天水市为二级旅游中心城市，合作市、张掖市和武威市为三级旅游中心城市，平凉市、金昌市和临夏市为四级旅游中心城市。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。