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Consequently,in this study we introduced genes that encode the xylose isomerase and xylulokinase precisely under the control of a strong,constitutive glyceraldehydes-3-phosphate promoter by PCR-mediated overlap extension,which is in charge of xylose assimilation;and also we introduced genes that encode the transaldolase and transketolase precisely under the control of enolase promoter,which is in charge of xylose utilization,then transformed plasmid with the two operons into Z.

因此，本文通过代谢工程手段，将负责木糖代谢转化的木糖异构酶基因和木酮糖激酶基因置于强组成型启动子3-P-甘油醛下；同时将负责木糖转化利用的转醛醇酶和转酮醇酶基因置于强组成型启动子烯醇酶下，通过电转的方式将上述四个基因转入到Zymomonasmobilis CP4中，从而在运动发酵单胞菌中构建起一套完整的木糖代谢途径。

On the opening ceremony, yang Yan of assistant dean of Shanghai music college enlighten the professor delivers open address, the arrival that reachs each expert learned man is held to express enthusiastic congratulation in Shanghai music institute to this congress, introduced the general situation of Shanghai music institute briefly to each expert that attends plenary meeting, introduced configuration of music of Shanghai music institute to develop theory and history to study this studies the history that way develops and current situation, emphasize pointing out, shanghai music institute serves as one all long history and the musical college of tradition learning arteries and veins, study in musical configuration direction is having very good inheritance sex, the get onning that is the same as stylish times sound the research system with the more complete construction that also is in hard.

在开幕式上，上海音乐学院副院长杨燕迪教授致开幕词，对此次大会在上海音乐学院举行及各位专家学者的到来表示热烈祝贺，并向出席大会的各位专家简要的介绍了上海音乐学院的概况，介绍了上海音乐学院音乐形态发展理论和历史探究这一探究方向发展的历史和目前状况，强调指出，上海音乐学院作为一所有着悠久历史和学脉传统的音乐高校，在音乐形态探究方向有着很好的传承性，同时新时代的上音也在努力的建设更加完备的探究体系。

In this thesis, the author introduced not only the main composing, harm, origin of niff in municipal sewage treatment plant but also the niff's emission standard, and introduced several deodorization technology, system pattern and equipment chosen in common use in the base of comparing with internal and overseas technical actuality.

文章介绍了臭气成份、危害、来源、排放标准和国内外技术现状，介绍了几种常用的除臭技术、除臭系统模式和除臭装置选型。

The variation of AI and AIV was introduced in the recent years.The re-recognition of AI and AIV,especially the susceptibility of mammal and the epidemic in man,and the rare fowl avian infected by influenza were also introduced and summarized.

介绍了近年来禽流感与禽流感病毒的变化以及对其的重新认识，特别是对哺乳动物的易感性与在人群中的流行。

The concept of CVM and the status of its development and application is introduced, the significance of CVM in environmental evaluation methods and its theoretical underpinning is analyzed, the available elicitation techniques or the question formats that acquire maximum WTP is summarized, various biases and their solutions are assembled together, and the statistical analysis methods of contingent valuation survey data especially the dichotomous choices data are introduced briefly.

详细总结归纳国际上CVM发展与应用研究的现状，包括：CVM在环境价值评估技术中的地位及其理论基础，最大支付意愿的各种引导技术，CVM研究中可能出现的各种偏差及其相应的解决方法，最大支付意愿的数据统计分析方法，CVM在美国、欧洲联盟国家以及发展中国家应用的情况。

Barker is synchronized code in digital communication. In this paper, design methods of barker 7 data transmitting card arc presented. The application background of Barker are introduced. The used methods of MCU 80C196KB and CPLD EPM7128SLC are set forth. Transmitting card is designed and implemented by using interface circuit and above-mentioned chips. The control process of barker 7 is introduced under PC parallel-port EPP mode. The partial design circuit is given, the cards is proved to achieve the generation and output of 7 Barker through practice. it can satisfy testing requirements of a certain Russian-made airborne product.

巴克码是数字通信中常用的信息同步码型；提出一种7位巴克码数据发送卡的设计方法：介绍了巴克码应用背景，阐述80C196KB单片机、EPM7128SLC可编程逻辑器件的使用方法，利用上述芯片和分立元件设计并实现7位巴克码数据发送卡；介绍了并口EEP模式下巴克码的控制过程，给出了巴克码数据发送卡部分设计电路，介绍了码型实现过程；通过实践证明了该发送卡能够实现7位巴克码的生成与输出，完全满足某型俄制机载产品测试要求。

Brief introduced the development course of tire curing press , analyzed the production status of tire curing press , and introduced the current main production countries and regions for curing press, as well as major manufacturers.

简述了轮胎硫化机的发展历程，分析了轮胎硫化机的生产现状，介绍了目前主要生产硫化机的国家和地区，以及主要的生产厂家。

This paper firstly introduced the programming development of string, then introduced its prefix, suffix and substring, and finally desribed and showed basic algorithms and the most important matching algorithm.

本文首先介绍了开发环境，然后对字符的前缀，后缀，子串作了介绍，最后对字符串的基本算法以及最为重要的匹配算法作了描述并加以实现。

Over the technology analysis to frame , a feasible bending technology is set up, the bending die structure with cam driver and slide block is introduced, and the critical points during design are introduced as well.

通过对机壳的工艺分析，制定出一种合理的弯曲工艺，介绍了一种带斜楔、滑块的弯曲模具结构，并对设计过程中的要点进行了介绍。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。