基础结构的基础设施的

Reinforced-soil structure is the construction that emerged accompanies with infrastructures, such as railroad conveyance, highway conveyance, the civicism construction and port...etc.

加筋土结构是伴随着铁路运输、公路运输、市政建设和港口等基础设施的建设应运而生的。

Civil engineering structures are important part of national infrastructures that are directly related to people's daily life.

土木工程结构是国家基础设施的重要组成部分，直接影响人民的生活和安全。

The system is composed of trust model, structure and function design, certificate database design, and implements the core functions of a standard CA system including signing, issuing and revoking certificates. The security communication modular of the system is based on the SSL Protocol to enhance the security of system communications. Besides, the kernel functions of the system are packed into DLL library, including symmetrical encryption algorithms, digest algorithms, digital signature algorithms and certificate operations such as certificate request, certificate building, certificate format conversion etc.

本文的主要工作是：在研究PKI相关技术的基础上，设计了企业CA系统方案，包括信任模型、结构和功能设计、证书库的设计；实现CA系统中最为核心的数字证书管理，提供数字证书的签发、注销和发布等各项功能；实现了基于SSL协议安全通信模块，增强了系统通信的安全性；系统采用动态链接库技术封装了对称加密算法、数字摘要算法、签名算法以及证书处理(包括证书请求、证书生成、证书格式转换等功能)，以动态链接库的形式提供调用接口，成为应用的安全基础设施。

Therefore, study of diagnostic and control method for momentous structures is important in construction engineering.

因此，重大土木工程结构和基础设施的控制方法与技术已成为土木工程领域的重要研究课题。

Based on the example of shahe reservoir, the text makes an analysis on circulation, management and environment and social economy development condition of the surrounding ecosystem. Then, the author carries on inquisition, data analysis and summary and makes calculation and demonstration of the safe stability of the dam ,and discusses the risking obviation and reinforcing technique. Finally, based on the existing research of sustainable development, experts" opinions and Mathematical Statistics analysis, the author brought forward an indication system suitable for reservoirs" sustainable development This system is made up of 4 first class indexes, 13 second class indexes, 38 foundational indexes. The 4 first class indexes are the dam safety evaluating index, the management index of reservoirs, the water ecosystem system stability index, the reservoirs construction effect index. The 13 second class indexes are the construction quality evaluating index, the dam running and management evaluating index, the flood control standard recheck index, the structure safety evaluating index, the anti- earthquake evaluating index, seepage safety evaluation index sign, the metal structure safety evaluating index, the engineering facility index, the management index, the water ecosystem system stability index, engineering effect index, the economic development index, the society development index.

本文以沙河水库为例，对其运行、管理及周围生态环境和社会经济发展状况进行调查，并将调查资料进行分析、归纳、总结；然后对水库大坝的安全稳定情况作出了简要的计算和论证，并讨论了水库的主要除险加固技术；最后在总结现有可持续发展研究的基础上，征集专家的意见，进行数理统计分析，提出了由4个一级指标、13个二级指标、38个基层指标组成的一套适合该水库可持续发展的指标体系。4个一级指标分别为：水库大坝运行安全综合评价指标、水库管理指标、水资源生态系统稳定性指标、水库建设效应指标；13个二级指标分别为：工程质量评价指标、大坝运行管理评价指标、防洪标准复核指标、结构安全评价指标、抗震安全评价指标、渗流安全评价指标、金属结构安全评价指标、工程设施指标、管理指标、水资源生态系统稳定性指标、工程效应指标、经济发展指标、社会发展指标。

In the last chapter, according to the requirement of the 4 mechanisms^(efficiency, evaluation, control and exhorting) in the

其次，我们必须建立武器装备的全系统、全寿命项目管理模式，以效益为原则，以科学和制度化的管理为基础，充分利用社会的经济、技术和设施设备，包括最主要的人力资源，利用商业化的采办方法，在满足军方需求的情况下，大量地采购或扩大采购军选民用产品，利用经济和法律的手段，调整工业结构布局和产品结构，为市场经济发展提供良好的外部环境。

Carbon fiber, graphite, carbon black, and steel fiber can be used to make smart concrete. But carbon fiber is high in price, low in dispersion and complicate in surface treatment. With the increasing of graphite and carbon black content, the compressive strength of conductive concrete decreases markedly.

机敏混凝土是具有自感知、自适应和损伤自修复等智能特性的多功能材料，利用这些特性可以实现结构的在线健康监测和损伤检测，在大型土木工程结构和基础设施的健康监测以及电子设备的电磁屏蔽等领域具有广阔的应用前景。

From the applications of mobile E-business, the structure and composition of WPKI is analyzed.

从移动电子商务应用的角度，分析无线公开密钥基础设施的结构和组成。

The use of magnesium will support the company's infrastructure requirements of space craft structures and ground solar field superstructures.

使用镁将支持该公司的基础设施要求的航天器结构和地面太阳能领域上层建筑。

At present light thin plate retaining wall is a very popular retaining structure. So its engineering quality and healthiness of the existing structures are very important to ensure the safety stability of infrastructure and security of lives and possession.

轻型薄板挡土墙是目前应用较为广泛的一种支挡结构，其工程质量及在役结构的健康运行对保证基础设施的稳定与人民生命财产的安全具有重要的意义。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。