结构工程

Based on the actuality of agricultural ecological security and regional heterogeneity in Hunan, the paper expounds the countermeasure including: strictly control the increasing of population, choose the agricultural resource using model by adjust measures to local conditions, speed the course of agricultural industrialization, establish the investment system of agricultural ecological security, adjust energy sources structure in country, put the returning cultivated land into forest project in practice, perfect the surveillance and forecast system of agricultural ecological security, reinforce the legislation and propagandizing of agricultural environment protection, and popularize the knowledge of ecological security.

这些措施为：严格控制人口增长，树立可持续的发展观；因地制宜选择农业资源利用模式，高效集约利用农业资源；加快农业产业化进程，提高农业持续发展能力；建立以政府投入为主的农业生态安全建设投入体系；调整农村能源结构，加快生态安全技术和产品的研究与开发；实施退耕还林工程，加快生态防护林体系建设；建立和完善农业生态安全监测与预警系统；加强农业环保立法与宣传，普及生态安全知识。

Keywords: HIV ,structural gene ,genetic engineering

中文关键词：人免疫缺陷病毒，结构基因，基因工程

The structural system of steel platform structure, the analysis of the steel structure, and design are introduced.

结果表明，此类工程除了结构整体分析外，应加强关键部位的局部分析。

So, it is essential and important to study structural damage diagnosis and control.

因此，有必要进行现役工程结构的损伤诊断与控制研究。

Fly Ash has been widely used in expressway′s roadbed,as well as base and subbase of high-grade pavement. Especially,the subbase structures usually adopt lime and fly ash stabilized fine-grain soil（lime-ash soil for short）to replace previous common lime stabilized soil,that improves the engineering quality and service quality of road further.

粉煤灰已广泛用于高速公路的路基及高等级路面的基层和底基层，特别是底基层结构形式多采用石灰、粉煤灰稳定细粒土，取代了以前较常用的石灰稳定土，进一步提高了工程质量和道路的使用品质。

Especially,the subbase structures usually adopt lime and fly ash stabilized fine-grain soil( lime-ash soil for short)to replace previous common lime stabilized soil,that improves the engineering quality and service quality of road further.

粉煤灰已广泛用于高速公路的路基及高等级路面的基层和底基层，特别是底基层结构形式多采用石灰、粉煤灰稳定细粒土，取代了以前较常用的石灰稳定土，进一步提高了工程质量和道路的使用品质。

On the basis of structural reliability, a evaluating model for existing engineering structures is proposed, two methods to determine the important coefficient of the model are studied, that are a determining method based on subjective probability and another determining method of relative weight based on AHP.

文中提出了基于可靠度的在役工程结构可靠性评估模型，研究了其中重要性系数的两种确定方法，即基于主观概率的确定方法和基于层次分析法的相对权重的确定方法。

In December, 2005, construction department subordinate three specialcommittees: The Chinese construction metal structure associationaluminum windows and doors curtain wall committee, China constructsthe decoration association curtain wall project committee, Beijingconstructs the decoration association curtain wall windows and doorscommittee, the organization concerned expert develops %26quot;the fine housesign to the our company to put on the strip type aluminum alloy toconserve energy evenly opens the window%26quot; to carry on the appraisal,draws the following conclusion: After the verification, the fine housesign puts on the strip type aluminum alloy to conserve energy evenlyopens the window system performance outstanding, the quality isreliable, the product technology achieved the international advancedlevel, has the higher promoted value, and jointly carries on therecommendation to the profession.

2005年12月，建设部下属三家专门委员会：中国建筑金属结构协会铝门窗幕墙委员会、中国建筑装饰协会幕墙工程委员会、北京市建筑装饰协会幕墙门窗委员会，组织有关专家对我公司研制的"嘉寓牌穿条式铝合金节能平开窗"进行评审，得出如下结论：经审核，嘉寓牌穿条式铝合金节能平开窗系统性能优异，质量可靠，产品技术达到国际先进水平，具有较高的推广价值，并联合向行业进行推荐。

The essential theory and implementation of structural static response surface based finite element model updating are presented in this paper.

0引言建立一个满足工程精度要求、反映结构力学特性的有限元分析模型是进行桥梁结构分析和评价的基础环节。

Then, the permeability tensor theory is utilized to calculate permeability tensor value of each measured chamber section in order to obtain crack medium three-dimension permeability tensor field.

针对裂隙岩体的非均质性、各向异性特点，本次毕业设计对紫坪铺水利枢纽工程地下洞室开挖后洞壁裂隙结构面进行了几何参数测量和分组，再利用渗透张量理论计算各测量洞段渗透张量值，获得裂隙介质三维渗透张量场。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。