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Meanwhile, it could be seen that there does not exist a confidence interval with width less than 0.5 because of the property of Poisson distribution. Based on these conditions, the author mainly carried out research into two aspects of this problem as follows. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example,"exact" confidence interval, Wald confidence interval and Bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed .Also, several better confidence intervals such asare also presented .Secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two-stage interval estimate procedures. At the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. The numerical computation shows that the method considered in this dissertation have good properties and applied value.

同时，由于Poisson分布的特性，我们知道不存在其参数区间长度小于0.5的置信区间，基于这些情况，我们主要展开了以下两个方面的研究：一是利用数值计算分析与理论分析的方法对现有的若干置信区间如"精确"置信区间，Wald置信区间，Bayes置信区间等进行分析比较，发现了一些缺陷，针对这些缺陷，我们进行适当的修正，并得到几种性质较好的置信区间如：修正大样本区间Jeffreys原则下置信区间二是针对已给定的置信系数与区间长度，我们提出了一种渐近的两阶段区间估计程序，并利用数值计算的方法，在各种置信系数与区间长度限定下，算出了最优的第一阶段观测次数，大量数据表明，本文考虑的方法性态良好，具有应用价值。

Firstly, it is very important to understand the teacher in class.

首先，我们在课堂上听懂老师的话是非常重要的。

Firstly , using the conditional independence test built the Bayesian network structure , and desensitizes remote sensing data of study area . Secondly , applying Bayesian network theorem as classification principle classifies every single pixel to a pixel of maximum probability sort .

采用贝叶斯网络分类对具有典型干旱特征的库车县土壤盐渍化情况进行监测，首先应用条件独立性测试原理建立贝叶斯网络结构，把研究区遥感数据进行离散化，然后应用贝叶斯定理作为分类原则，将每个像元分为像元最大概率的类别。

I think you should do below Firstly,you should finish work unattached (not only your classwork ,but also your homework) Secondly,do some preparation before your class.

我觉得你应该做到一下几点，首先你应该独立完成作业（不管是是课堂作业还是家庭作业），第二，课前做一些预习。

Firstly, pottery originates in the imitation to their own body of our ancestors, that is, the evolution of clay model;secondly, the evolution of clay into pottery is a long way to go. During this process, a so-called "mud browser" time should exist.

一是陶器的起源是来自于原始先民对自身形体的模仿，及其这种泥塑的器型演变；二是由泥塑到陶器的演化是相当漫长的，在这个过程中应该存在一个所谓的"泥器"时代。

Firstly, improving the propaganda of honest or clean politics and improve citizen education.

希望能对中国今后的反腐败工作有一定的帮助。

Firstly we clear the back buffer ready for drawing.

首先我们清除了back buffer来准备绘画。

Firstly, that it is the duty of a clergyman...

首先 这是神职人员的职责

The story of three families lane was happened after the May 4th Movement of 1919 and great revolution period in Guangzhou, it is the story of a clerisy who named Zhoubing firstly as a forger. The novel reflects Family, neighborhood's change in great revolution period.

三家巷》的故事发生在"五四"运动后和"大革命"时期的广州，主要表现了"一个叫周炳的打铁出身的知识分子的半生经历"，它反映了家庭与邻里的传统关系在大革命动荡年代经历的冲击与变故。

Viewed from the perspective of modern history, this type of fiction was in the specious process firstly, and be given the role as a literary embodiment of enlightenment. It seems that country people were the "other" who was slept by the self-awareness of enlightenment. Villagers were signed as "country". This type of fiction actually incarnated the new culture ideology of May Four clerisy, therefore these enlightenment novels about "country" weren\'t "country literature", but "native literature" which didn\'t make effect of coming into country. However, their burden function and habit to ideology was inherited and extended by country novel.

单从对现代历史发展的镜像反映上看，它似乎最初曾被赋予了"启蒙"的文学载体的角色，好像乡村人是被启蒙的自我意识沉睡的"他者"，村民被符号化为"国民"，这种创作实际上体现的是五四知识分子的新文化意识形态，属于未对乡村发生参与效应的"乡土文学"，但是，它对意识形态的承载功能和习惯为乡村小说所接续并放大。

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。