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Base on the problem of large quantity fatigue loads on corroded R.C. structure and small quantity study of its mechanical property, bending resistance fatigue test of corroded R.C. beams is discussed in this paper. The influence of stress ratio and re-bar weight loss ratio on bending resistance fatigue performance of corroded R.C. beams are researched, and the relation between strains of corroded re-bars and fatigue life of beams are obtained. The main research contents and conclusions are as following: 1. Under the fatigue loads, the overstrain of concrete approximately coincidences three stages strain development and accumulation rule, and the mechanical property of concrete is deteriorated. The fatigue damage of concrete is accumulated. The overstrain of re-bars increases and the increase rate decreases.

鉴于实际工程中大量存在腐蚀钢筋混凝土结构承受反复荷载作用，但其力学性能研究不多的问题，本论文进行了锈蚀钢筋混凝土梁抗弯疲劳试验，研究了应力比和钢筋锈蚀率对锈蚀钢筋混凝土梁抗弯疲劳性能的影响，得出了锈蚀钢筋的应变与构件疲劳寿命之间的关系曲线，主要研究内容及结论如下：(1)在循环荷载下，混凝土残余变形基本符合三阶段变形规律，力学性能劣化，疲劳损伤积累。

Paired samples are hired to compare the performance between firms which hired independent directors and which didn't in the early stage. The result shows that no difference exists before and after the introduction of independent directors. Cross-sectional data of 2003 are used to test the affects in new stage of development.

对于制度发展早期的实施效果，笔者试图通过对已设立独立董事和未设立独立董事两组配对样本的比较检验，发现他们价值之间的差距，然而结果显示，无论在设立独立董事之前还是之后，两组公司的价值都没有显著差异。

In this paper, the holographic recording material commonly used types and performance, the analysis of the characteristics of silver halide emulsion, in today's rapid development of holography are discussed under the premise of panchromatic silver inquiry test the significance of photographic materials.

本文就常用的全息记录材料的种类和性能进行了介绍，分析了卤化银乳胶的特点，在当今全息技术发展迅速的前提下讨论了试研银盐全色感光材料的重要意义。

The Company's subsidiary, Designer Diagnostics, is engaged in the research and development of diagnostic test kits designed to be used for the rapid identification of infectious diseases such as Paratuberculosis and Mycobacterium avium-intracellulare.

该公司的附属公司，设计师诊断，从事研究和诊断医疗的发展要为传染病的快速识别使用，例如副结核病和结核分枝杆菌胞内。

Is running windows ce 4.2 version of the recording application procedures, development board of the company, test passe...

这是运行在windows ce 4.2 版本下的关于录音应用的程序，是开发板公司提供的，测试通过了。

Classic Poetry is very important to Chinese curriculum. Affected by test-dealing education, Chinese teaching mainly concentrates on its meaning, but ignores the students aesthetic cultivation and the development of image thought, which causes the student to fail to understand the poetry compare pensively.

古典诗歌是中学语文课程中的重要部分，但由于受到应试教育的影响，中学语文教学多以理解它的意义为主，忽视诗歌审美意识的培养，形象思维的开发，导致学生普遍缺乏对诗歌正确面全面地把握。

This is a portable C language graphics development system, users can conduct its own test.

这是一个便携式C语言图形开发系统，用户可以自行进行试验！

With the development and practice of 20 years, the HSK has become a predominant test of bright characteristics.

20年的实践与发展，使HSK具备了鲜明的特点与优势。

This dissertation simply introduces the development and application of artificial neural network, then discusses the system of test and control of rotary air preheater, puts forward the research technique and research content.

本文简要介绍了神经网络的发展及应用，并论述了回转式空气预热器漏风测控系统，提出了本课题的研究内容及研究方法。

This paper introduces the development and principle, and present study situation of electrohydraulic proportional control system, and the work principle and every component of electrohydraulic proportional valve-controlled motor system of test platform are analyzed in detail, establishing the mathematics model of the valve-controlled motor system.

本文介绍了电液比例控制系统的发展、原理及目前的研究现状，对试验台的电液比例阀控马达速度控制系统的工作原理及各组成部件进行了详细的分析介绍，建立了阀控马达速度控制系统的数学模型。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。