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For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.

为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发，本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台，实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能，使用复合文档技术和流压缩技术进行数据的存储，使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息，使用自定义哈希函数来提高运行速度，实验证明，该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求；通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间，加载在该空间的数据可以具有较好的鲁棒性，基于此，本文设计了一种利用汉字结构加载水印的文本数字水印方法，并使用汉字数学表达式平台将其实现；由于水印嵌入算法对于文本数字水印的鲁棒性至关重要，本文充分利用汉字数学表达式理论的优点，设计了一种文本分层的方法，并使用汉字数学表达式平台将其实现，使文本成为一个立体的空间，使嵌入在其中的数据具有更好的鲁棒性；最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上，结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法，经实验证明，该方法有良好的鲁棒性和较好的隐蔽性。

In the first part there is an introduction in brief to the history and present market status of the Chinese motorcycle industry; In the second part, there is an introduction in brief to the international motorcycle market, analyzing the marketing characteristics of the Chinese motorcycle export business, find out the key characteristics which influence the Chinese motorcycle export; In the third part, through the analogizing and analyzing on the Chongqing motorcycle export, find out the main problems which have hindered the expansion of the Chongqing motorcycle export; In the forth part, based on the analysis of the China"s entry to "WTO which will influence the motorcycle and its spare-part industry, make out some new basic strategy and further countermeasures to the expansion of the Chongqing motorcycle in overseas market.

首先，在第一部份中简要介绍了我国摩托车工业的发展历史和市场现状，；在第二部分中，介绍了国际市场的摩托车贸易现状，对中国摩托车出口的国际市场特点进行研究，分析影响中国摩托车出口的各类因素；在第三部分中，通过对重庆市摩托车近期出口现状的分析，指出扩大重庆摩托车出口所面临的瓶颈问题；第四部分，在对加入&WTO&以后我国摩托车工业可能受到的影响进行分析的基础上，为扩大重庆摩托车产品的出口提出一些新的思路。

In order to study transmission of 6VS/6AL chromosome through gametes and its genetic stability in different genetic background, the 6VS/6AL translocation line 92R137 (highly resistant to powdery mildew) were respectively crossed to common wheat varieties Bainong 64, Bainong 9310, Han 5310, Xiaoyan 54, Huaimai 20 and Xumai 856 introduced from different areas of China and the hybrids F1 were backcrossed as male and female.

为研究小麦－簇毛麦6VS/6AL易位染色体在不同小麦背景中的遗传稳定性及其在配子中的传递，利用高抗白粉病的普通小麦－簇毛麦6VS/6AL易位系92R137与不抗白粉病的栽培品种百农64、百农9310、邯5310、小偃54、淮麦20、徐麦856进行杂交，并用这些品种分别与杂种Fl进行正反回交。

In order to carry on closure safely, reliably, high-efficient and scientifically, it is necessary to carry on computation and analyze to various kinds of situations that may appear while closuring, especially to the change of the hydraulic parameters and the ascertain for the throwing particle-size, hold the key factor among them, carry on the planning, design and construction meticulously, carefully, guarantee the project progress and security.

为了能安全、可靠、高效、科学地实施截流，有必要对截流中可能出现的各种情况进行计算分析，特别是截流过程中的流速等水力参数变化及其抛投料粒径确定等问题作详细的计算研究，把握其中关键性因素，精心、周密地进行截流工程的规划、设计与施工，确保工程进度与安全。

The amount of passes of the top 8 teams is 443 times, much more than the last world cup game; the everage number of passes of each team in one game in the group stage is more than the number in the knock-out stage. The most efficient of passes took place in the midfield, then the defensing third and the attacking third the last.

本文综合采用了文献资料法、专家访谈法、逻辑分析法、观察统计法、数理统计法和比较分析法对参加第18届世界杯足球赛的八强球队在比赛中的传球情况进行统计分析后，从宏观上对这些球队在传球这一数据上所体现的基本特征及影响要素进行分析研究，从研究中得出以下结论： 1。

Chapter Four analyzes the thirteen ditties' from, harmony and playing, and tries the different composition method of the thirteen ditties in teaching.

第四章，侧重对《童年情景》(Op.15)13首小曲进行曲式、和声及演奏进行分析，并尝试13首小曲在教学中的不同组合方式。

This thesis did the next research about the appliance of ionic exchange resin in the aspects of the abstraction in the VC abstraction shop manufacture process .1, The text filtrated ion exchange resin .

本论文对离子交换树脂在VC生产中的提取工序中的应用进行了以下几方面的研究：1、本文对离子交换树脂的进行了筛选。

This paper discusses data consistency management of the system,improves the traditional technology,and lucubrates the data replication strategy ,local data source s plug-and-play mechanism,data namespace and system security management,which are the key technologies and the basis of the system realization.

对实现系统所需要的关键技术进行讨论，对数据的一致性管理方法进行分析并对传统方法进行改进，对系统的数据复制策略、局部数据源的即插即用机制、缓冲区系统中的数据名空间和系统的安全管理等关键技术进行深入探讨

As The Economist went to press, the allocation of ministries had yet to be settled.

在《经济学人》进行报道的时候，部长级别的人事调动尚在进行中。

I think when it comes to Britain and China, we can co-operate carefully together in our policing and other systems.

在这个问题上，我认为英中可以进行谨慎的合作，并且和其他系统进行配合。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。