查询词典 cluster sampling

In the process of cluster formation,one selected cluster head with low energy could find a high energy node to be its replacer.

理论分析及仿真结果表明，新提出的路由协议比LEACH更能均衡并减少能量消耗，延长了网络的生命周期。

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。

The traditional query tree optimization methods,parallel database optimization methods based on left linear trees and right linear trees,bushy trees,and operation of the forest,have their own pros and cons,they have been more in-depth and maturity of the study.The query optimization method based on multiple weighted tree has studied its model of parallel query plan,its complexity model of parallel query plan and query optimization algorithms.The semantic query method transforms an inquiry into one or several semantic equivalence inquiries then has to find and implement a strategy to achieve a better query.Agent-based parallel database query optimization using Multi-Agent technology to automatically search the integrity constraint conditions which are related to the determined query,there for,the efficiency between several relations' joins has been greatly improved.The parallel optimization algorithm,based on genetic algorithm which is suitable for multi-joins of cluster environment,has deeply studied the relations storage options,multi-joins query optimization and query processing and other key technologies based on cluster parallel database.

传统的查询树优化方法，即基于左线性树、右线性树、浓密树、操作森林的并行数据库查询优化方法，各有优劣，对其的研究比较深入、成熟；基于多重加权树的查询优化方法，研究了其并行查询计划模型、并行查询计划的复杂性模型和查询优化算法；语义查询优化方法将一个查询变换成一个或数个语义等价的查询，进而寻找并执行这些等价查询中具有较好实现策略的一个；基于Agent的并行数据库查询优化采用Multi-Agent技术自动查找与给定查询有关的完整性约束条件，使得多个关系间连接操作的效率得到很大的提高；基于遗传算法的并行优化算法，深入研究了基于机群并行数据库中关系存储的选择、多连接查询优化和查询处理等关键技术。

Therefore, the use of factory production in the silkworm box cluster designated price than the traditional flower of the cocoon cluster much higher price per kilogram, it will eliminate all trouble sericulturist.

因此，采用本厂生产的方格簇的蚕划价格要比传统花簇的茧价每公斤高很多，它将为蚕农消除一切烦恼。

According to Chair of Department of Neurology, Taipei Veterans General Hospital, Shuu-Jiun WANG, the activation of trigeminal vascular system in the brain is commonly regarded as the pathogenic mechanism for sick headache and cluster headache. Stick to this premise, the research team hypothesizes that the system activator Nociceptin and the system inhibitor Orexin A these two kinds of neuroproteins are related to the pain degree of migraine and cluster headache.

北荣神经内科主任王署君表示，脑内三叉神经血管系统活化与否，是医界公认的偏头痛与丛发性头痛致病机转，故研究团队推测，可活化该系统的致痛素，以及抑制该系统的下视丘素两种神经蛋白质，应与偏头痛与丛发性头痛的程度有关。

In the electromagnetic field that countercurrent inductor produces, the metal droplet that melts gets the role suspension of electromagnetism force in quartz pipe center and had been heated up continuously. When metal droplet of melting have been heated up certain temperature surface beginning gasification, metal vapor tension will raise follow temperature go up, is heated continuously can have plenty of metal atoms overflow metal ball liquid surface, at the same time, as the inert gas of cooling medium, all along with certain current velocity, sideswipe the metal droplet surface that melts. Metal atoms fly out liquid surface according to certain way form the atom cluster by the condensing of inert air current, merger and the collision between crystal nucleus pellet and atom cluster form the smoke flame of nanoparticle pellet eventually.

在逆流感应器产生的电磁场中熔化的金属液滴受电磁力的作用悬浮于石英管中央并继续被加热，当金属熔球被加热到一定温度时表面开始气化，金属蒸气压随温度的升高而升高，继续受热会有大量的金属原子飞出熔球液面，与此同时，作为冷却介质的惰性气体始终以一定的流速掠过熔化的金属液滴表面，原子飞出液面受冷后就按照一定的方式凝聚成原子簇，在惰性气流中形核并随之长大，颗粒、原子簇间的碰撞与合并，最终形成金属纳米颗粒的烟焰。

Based on analyzing traditional fuzzy cluster method,this paper presents a new method for building fuzzy similar matrix R and a method of polydirectional synthetical fuzzy cluster,which can fully reflect the partiality and experience of policy makers.

在分析传统模糊聚类分析方法的基础上，提出了一种建立模糊相似矩阵 R的新方法，以及能够充分体现决策者偏好和经验的多向综合模糊聚类方法。

The length,width,thickness and weight of the current year and more than one-year-old needles of both bi-needle-cluster and tri-needle-cluster of slash pine were measured to expose the differences in terms of leaf shape and specific leaf area,and leaf area index was estimate based on measurement of the plantation in Qianyanzhou Ecological Station.

对湿地松当年生和多年生两针一束、三针一束叶片的长度、宽度、厚度和重量分别进行量测，据此探讨不同类型叶片的叶形和比叶面积差异，并结合样地调查数据对中科院千烟洲试验站湿地松人工林的叶面积指数进行计算。

Sport s economics ;sport s shoe industry ;industry cluster ;innovation ;open2up of cluster

体育经济学；运动鞋业；产业集群；创新；集群开放度

The Chinese sport s shoe cluster manufactured great number of shoes. However ,the quality was not high enough. Therefore , it was necessary to innovate the product s ,open the cluster more ,define the governmentπ s function and develop the intermediaries.

我国的运动鞋业集群虽然在"量"上具有优势，但在"质"上不能取胜，应该进行科技与产品创新，扩大集群开放度，明确政府的作用与定位，大力发展中介服务机构和缓解人才的瓶颈问题。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我