分类统计

In the most situations, the absolute number can't be used for comparison between different populations.

相对数是用于分类变量资料统计描述的指标，可大致分为三种不同性质的相对数。

To make paper more systematic and practical, this paper has first introduced the development history of CT equipment, then, elaborate construction of system and theworking principle of CT equipment systematically, including the property of X-ray, the absorption law of X-ray for materials, the reconstruction principle of CT image, the structure of software and hardware for CT equipment. Finally, with 2 CT systems that we used, statistic and analysis of all the malfunctions which have carried out in passed 10 years was given, and according to the systematic parts of fault located, classify the malfunctions, then elaborate their working principle one by one, analyze the regularity and the characteristic of each malfunction, and put forward specific prevention method and measure for the malfunction.

为了使论文更具系统性和实用性，本论文首先介绍了CT设备的发展史，然后比较系统地阐述CT设备的工作原理及系统结构，包括X射线的特性和物质对x射线的吸收规律，CT图像的重建原理，CT设备的软、硬件结构等，最后以我们所使用的2台CT为例，对10余年来所出现的故障进行了全面的统计分析，并按故障所处的系统部件进行分类，然后逐个阐述其工作原理，分析其故障的特点和规律，并就这些故障提出具体的预防方法和措施。

This registration form to the enterprise name, account number and classification code organization, every enterprise a table, transparent plastic folder to folder and bound into a book to statistics.

此登记表以企业名称，账号和组织机构代码分类，每个企业一张表，夹入塑料透明文件夹并装订成册以便统计。

Additionally, we examine the life style and demographic data, and take the AIO lifestyle variables as the categorization basis to divide consumers into different consumer groups.

此外，本研究根据生活型态与人口统计资料，并且以AIO生活型态变数当做分类基准将消费者分群。

Was 2009 probably - 3-22 date, I examine past website statistic, fill in, 400 Ip, and Ip still is continueing to ever was added, go to 23, achieved the history highest discharge 870ip, 24 450ip, 25, 322ip, later less and less, go up accidentally Baidu search: Ash-bin, wow, I was stupefied, unexpectedly my station platoon arrived to be ranked naturally the first, cause searched a few key word after, classify ash-bin, environmental protection ash-bin, ash-bin encyclopedia, dustbin, discharged nature to rank home page!

大概是2009年-3-22号，我查看往网站统计，哇塞，400个ip，而且ip还在继续曾加，到23号，达到了历史最高流量870ip，24号450ip，25，322ip，之后就越来越少了，无意间上百度搜索：垃圾桶，哇，我惊呆了，居然我的站排到了自然排名第一，后来由搜索了几个关键字，分类垃圾桶，环保垃圾桶，垃圾桶大全，垃圾箱等，都排到了自然排名首页！

This article studies the statistical automatic text classification methods in the National Science Digital Library.

本文在国家科学数字图书馆的应用背景下，研究基于统计的自动文本分类方法。

Bowker's test and McNemar's test are the non-parametric statistical procedures for the paired nominal-scale data.

Bowker检验及平方表分割后的McNemar检验都是非参数统计方法，用于检验多分类配对计数资料。

Firstly, we summed up the process and results of historical research. And then we classified the action morpheme and the noun morpheme. Based on the classification, we analyzed noun morphemes in order to find which kind of noun morpheme is strong to unite and which is the weak ones to centre around the action morpheme. Then we stated, analyzed and accounted for the usage of different semantic categories used in the line situation. We found that action morpheme combined into one by moving the line word was the main line and the main format, and explored and analyzed the role of analogy of noun morpheme line to other formats. Line formation of the word has its own reasons, so the article concluded by examining the formation of the line words' language, social and other reasons at last.

文章着眼于对动、名语素组合成的离合词的语义构成进行分析，探讨了动、名语素组合成离合词的语义选择规律，以动、名语素的语义分类为基点，在分类的基础上，以动语素为中心，分析围绕动语素的名语素义类，分析哪些义类名语素和动语素组合成离合词的能产性较强，即组合的周遍性和数量频度上是最高的，哪些义类组合成离合词的能产性比较弱，试图寻找动语素与名语素组合成离合词在义类上的能产性和周遍性，然后再对不同语义类组合中离合运用的情况进行统计、分析、说明。

Monte Carlo is a method that approximately solves mathematic or physical problems by statistical sampling theory. When comes to Bayesian classification, it firstly gets the conditional probability distribution of the unlabelled classes based on the known prior probability. Then, it uses some kind of sampler to get the stochastic data that satisfy the distribution as noted just before one by one. At last, it can obtain the posterior probability distibution of each unlabelled classes by analysing these stochastic data.

蒙特卡罗是一种采用统计抽样理论近似求解数学或物理问题的方法，它在用于解决贝叶斯分类时，首先根据已知的先验概率获得各个类标号未知类的条件概率分布，然后利用某种抽样器，分别得到满足这些条件分布的随机数据，最后统计这些随机数据，就可以得到各个类标号未知类的后验概率分布。

CVIResearch is pleased to note that the best performance among the published methods is offered by Statistical Landscape Features which utilizes pseudo 3D information derived from the image landscape generated by taking the intensity of the pixel as its height over the image plane.

在目前已经出版的方法中，我们提出的&统计地形特征&取得了最好的分类效果。&统计地形特征&将图像中每一个象素点的灰度值看成图像平面上的高度。构成了图像地形图。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐