查询词典 sampling distribution

We obtain the transient distribution of queue length and probability generating function of queue equilibrium distribution.

研究了服务前需要重新调整机器的单重休假M~x/G/1排队系统，在LS变换和L变换下得到了服务员忙期中队长的瞬态分布和队长稳态分布的概率母函数。

From the point of view of geobotany, with the method of correlative factors of growth of plants, a countrywide theoretic ecological division was done for the introduction of Camptotheca acuminata and three kinds of areas of ecological preferent zone, ecological adaptive zone and ecological unadaptable zone were divided. With the theory of synecology, the characteristic on environment, constitution, life form spectrum, diversity, similarity of plots of communities were researched. Applying the method of species association, discrete distribution, indensity index, fractal geometry, etc. to research relations between the species of the communities, space distribution of Camptotheca acuminata, structure of age of Camptotheca acuminata, in different communities. Using the theories of autoecology, distibutons of seeds on land and growth of seedlings in vertical and horizontal directions, biomass of organ of Camptotheca acuminata were analyzed. On the opinions of conservation biology, the external and internal factors impressing Camptotheca acuminata were analyzed to research the mechanism of the endangered species, and with using of CTM Model, the future development direction of Camptotheca acuminata in different communities were forecasted, and. Standing on the position of resources ecology, discussing the regularity of camptothein in Camptotheca acuminata of different sites and seeding of different resources, also the the derive technics of camptothecin.

本文从地植物学的角度，运用植物生长相关因子法，对我国喜树资源的生态适宜区进行了划分，理论上确定了我国的喜树的引种栽培的最适生活区域、生态适宜区域和不适宜生活区域；从群落生态学的角度，对野生喜树所在的典型群落的群落环境、群落组成、群落生活型谱、群落的物种多样性特点、群落样地间相似性进行了研究；从种群生态学的角度，运用种间联结性、离散分布模型、聚集强度指数、分析几何等分析手段，对野生喜树所在典型群落间的种间关系、喜树的空间分布格局、年龄结构等进行了分析；从个体生态学的角度，对不同年龄组的喜树的种子的散落的垂直分布、水平分布、时间分布及种子发芽率和千里重等特点、不同种源的人工喜树苗期特点、喜树的高生长和茎生长特点、喜树的器官生物量特点进行了研究；从保护生物学的角度，对野生喜树的濒危的内部因素和外部因素进行了探讨，并运用CTM模型对不同群落中野生喜树的种群趋势进行了预测；从资源生态学的角度，对我国地理环境下喜树中喜树碱含量的地理分布规律、不同种源的喜树幼苗中喜树碱含量变化规律进行了研究，并对喜树碱的提取工艺进行了探讨。

This article is composed of two parts: the statistical analysis for geometric distribution and the statistical analysis for Weibull distribution as well.

本文由几何分布产品的统计分析和Weibull分布产品的统计分析两篇组成。

This article gives the key results for geometric distribution with respect to the following three aspects:1. The statistical character for geometric distribution.

第一篇：几何分布产品的统计分析几何分布是离散型分布中最重要的分布之一，它在信息工程、电子工程、控制论及经济学中有着重要的应用。

We point out the similarity and difference between the properties of the order statistics from the geometric distribution population and exponential distribution population.

2几何分布总体次序统计量性质与指数分布次序统计量性质的比较，着重说明其相似和差异性。

Part one: The statistical analysis for geometric distribution The geometric distribution is one of the better known discrete probability distributions and has many useful applications.

第一篇：几何分布产品的统计分析几何分布是离散型分布中最重要的分布之一，它在信息工程、电子工程、控制论及经济学中有着重要的应用。

The geometric distribution is in fact the only memoryless discrete distribution

终于把电脑全部重装了，D盘也被格式化。该记住的，记在心里好了

As the most of traditional Intrusion Detection Systems are static and have difficulty in coordinating with the outer dynamic situation, consequently, leading to a serial of deficiency such as limited distribution .limited accommodation and limited robust etc. Fortunately, the Human Immune System can protect themselves from the invasion of the virus, germina and all such sort of things. Meanwhile, they has a lot of excellent features such as good distribution, Self-organization,dynamic and so on and these features perform fabulous similarity on the function and characteristic with the Intrusion Detection System,which arousing peoples highly attention and interesting and make the researching and development of the Intrusion Detection System based Human Immune System becoming one of the hot and the key of the network security research.

由于传统的入侵检测系统大多是静态的，很难与动态环境协调一致，造成分布性差，适应性差，健壮性不好等种种缺陷；而生物免疫系统可以保护人类机体不受诸如病毒，病菌等各种病原体的侵害，且表现出了分布式保护，多样性，自组织性，动态性等良好特性，且这种与入侵检测系统在功能和特性上的惊人相似，引起人们的高度重视和兴趣，使得借鉴生物免疫系统的机理开发研究入侵检测系统成为网络安全的研究热点和重点。

The results show that using P-III distribution to estimate floods is more feasible than using GEV distribution.

解决这个问题的有效途径之一是运用区域综合方法。区域综合问题在我国很早就受到重视。

The Grove Mountains expedition is one of the highlights of this expedition, after surveying and mapping personnel have conducted four times the Grove Mountains mapping, geology and glaciology comprehensive survey, field mapping of the Grove Mountains, the surface of the core area of 110 square kilometers topographic maps and maps of protected areas; emplaced 10 geodetic control points, seven ice-flow monitoring stations; the use of different resolution optical images, SAR images, carried out the distribution of the ice fissure information extraction research, production of the Grove Mountains region Flat satellite image maps, digital elevation models and a wide range of blue ice distribution maps, for my recovery to the 9834 Antarctic meteorites have made contributions.

格罗夫山考察是本次考察的亮点之一，此前，测绘人员已进行过4次格罗夫山测绘、地质与冰川学综合考察，实地测绘了格罗夫山核心区110平方千米表面地形图和保护区地图；布设了10个大地测量控制点、7个冰流速监测站；利用不同分辨率光学影像、SAR影像等，进行了冰裂隙分布信息提取研究，制作了格罗夫山地区平面卫星影像图、大范围数字高程模型及蓝冰分布图，为我国回收到9834块南极陨石作出了贡献。

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。