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sd系统
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  sd system
     On the basis of analysis,Comparlson and study of the Barton′s Q system and the surrounding rocks classification evaluation system (SD system) of undergraund engineering of hydropower industry of our comtry,with response to hydropower engineering,the relation between SD system and Q system is discussed. The brace disigning plan of SD system detailed and developed and its defects in that it is too simple and inrolves too few bracing types were made up.
     在对我国水电地下工程围岩分类评价系统(SD系统)和Barton的Q系统的分析比较研究的基础上,针对水电工程,探讨了SD系统和Q系统的相关关系,细化和发展了我国SD系统的支护设计方案,弥补了其支护类型偏少和简单的不足。
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  “sd系统”译为未确定词的双语例句
     Sustainable development system is a complex giant system,which consist of six subsystems such as ecological environment subsystem,resource subsystem,intelligence supporting subsystem,society subsystem,economy subsystem,human subsystem and,is divided into four levels of exclusive economic zone system,integrated experiment district systems and unit systems,et al.
     可持续发展系统是一个复杂的巨系统 ,它由生态环境子系统、资源子系统、智力支持子系统、社会子系统、经济子系统、人口子系统六个子系统和国家SD系统、专属区域SD子系统、综合实验区SD子系统、单元SD子系统四个层次构成。
短句来源
     The study, based on the system of dynamics theory and SD model, simulated the balance between the water and soil of Ejina Oasis.
     本文以系统动力学理论为基础,采用SD系统动力学模型,对额济纳绿洲水土资源平衡进行模拟研究。
短句来源
     According system dynamic theory, the WRCC system is divided into 6 subsystems, including water resource system, waster water system, industry requiring water system, agriculture requiring water system, living requiring water system and zoology requiring water system. According to the relations between the subsystems, decision-making variables and tables are decided, then System Dynamic model is established which including 6 subsystems, 5 state variables, 7 tables and 27 loops.
     利用系统动力学原理,对水资源承载力系统中的水资源子系统、水污染子系统、工业需水子系统、农业需水子系统、生活需水子系统及生态需水子系统等六大一级子系统进行细分,在分析二级子系统之间相互关系的基础上,确定决策变量和表函数,使用vensim软件建立了包括6个子系统,5个状态变量、7个表函数和27条反馈回路的水资源承载力SD系统模型。
短句来源
     According to the situation of Hejin city, Hejin WRCC SD model is established.
     根据河津市具体情况,建立适合河津市的水资源承载力SD系统模型。
短句来源
     On the basis of the analysis of difference and sameness of two simulation tools,Arena and System Dynamics,the characters and application fields were discussed for supply chain research.
     在分析Arena和System Dynam ics(SD,系统动力学)两种仿真工具异同点的基础上,探讨了两种仿真工具在供应链研究中的特性和应用领域。
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  相似匹配句对
     SYSTEM
     系统
短句来源
     system).
     系统)。
短句来源
     SD Emulation of Series Pond System
     串连水池系统SD仿真
短句来源
     The Establishment of SD Pattern for Environmental Economy System
     环境经济系统SD模型的建立
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     The number of ~3H-Dex specific binding of them were 9464±2571 sites/cell and 7364±1237 sites/cell respectively.
     ±SD)。
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  sd system
Emergence of cotton was slower in a SD system than for BD or F.
      
In addition to the inherent qualities of a digital image, the qualities of the monitor and graphics control card as well as the viewing conditions will affect the perceived quality of an image that is displayed on a soft copy display (SD) system.
      
Unlike the traditional film-on-lightbox display, optimal SD system parameters are not well defined, and many issues remain unsettled.
      
Responder (Rsp) Alleles in the Segregation Distorter (SD) System of Meiotic Drive in Drosophila may Represent a Complex Family o
      
Owing to the stochastic nature of the multiple access interference, the new maximum output selection diversity (MO/SD) system yields superior performance in comparison to the traditional maximum SNR selection diversity (SNR/SD) model.
      
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The 68 counties of low mountains and hills in Sichuan basin being taken asan example, an effort has been made in this study to adjust the structure of the region'sprotection forests, its types and species by using eco-economic principles;The resultsmake the utilisation of land more practical,thus the protection-forest system is far morebeneficial to sustainable management.

以四川盆地低山丘陵区68个县为研究对象,林业综合发展策略为基准,借助SD系统动力学仿真手段,对该区域农林结构、林种及树种配置进行了调控。研究结果提出了各亚区农林土地利用阈值,林种比例方案及树种配置技术指标。显著地增强了防护林体系产出的丰实度、生物多样性和系统与环境的协调性。为持续、高效地发挥防护林体系的目标功能提供了科学依据。

On the basis of analysis,Comparlson and study of the Barton′s Q system and the surrounding rocks classification evaluation system (SD system) of undergraund engineering of hydropower industry of our comtry,with response to hydropower engineering,the relation between SD system and Q system is discussed.The brace disigning plan of SD system detailed and developed and its defects in that it is too simple and inrolves too few bracing types were made up.

在对我国水电地下工程围岩分类评价系统(SD系统)和Barton的Q系统的分析比较研究的基础上,针对水电工程,探讨了SD系统和Q系统的相关关系,细化和发展了我国SD系统的支护设计方案,弥补了其支护类型偏少和简单的不足。

The application of closed Brayton cycle solar dynamic system to space station power was reviewed. The closed Brayton cycle (CBC) power conversion system can be used with a wide range of heat sources for space power. The solar dynamic CBC system is based on the CBC using a solar concentrator as heat source and was regarded as a second generation advanced space station power system because of its higher efficiency, lower system mass, less performance degradation in LEO and lower operation costs relative to photovoltaic...

The application of closed Brayton cycle solar dynamic system to space station power was reviewed. The closed Brayton cycle (CBC) power conversion system can be used with a wide range of heat sources for space power. The solar dynamic CBC system is based on the CBC using a solar concentrator as heat source and was regarded as a second generation advanced space station power system because of its higher efficiency, lower system mass, less performance degradation in LEO and lower operation costs relative to photovoltaic solar cell. So far the highest cycle efficiency of more than 30% and orbit efficiency more than 17% have been proved by 2 kW ground experimental test. In order to improve the CBC efficiency, coatings could protect the surfaces of the concentrator and radiator. A detailed discussion on the protective coating was made.

对闭式Brayton循环太阳能热动力系统在空间站的应用研究作了综述,着重讨论了该循环的发电原理和主要能量转换模块——涡轮发电机-压缩机,目前国际研究达到了循环效率超过30%、系统总效率超过17%的水平,与光伏电池系统相比,SD系统具有高效率,质量轻,费用少,寿命长等特点。为提高系统的效率和减少空间环境的腐蚀,对聚能器表面和辐射散热器表面均需进行保护涂层处理。文章介绍了国际上这方面的研究成果。

 
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