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principle of selecting
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  选择原则
     This paper discusses ETL technology and the principle of selecting the ETL tools and introduces the design and implementation method of ETL process in detail.
     本文重点探讨了ETL技术以及ETL工具的选择原则,并结合具体实例详细介绍了ETL过程的设计和实现方法。
短句来源
     According to the load and pipeline characteristics of heating systems, puts forward the principle of selecting circulating water pumps and the fitting method of characteristic curves.
     针对供暖系统的热负荷及管路特性,给出了循环水泵的选择原则及其特性曲线的拟合方法。
短句来源
     The principle of selecting signal wave form parameters and its effect on fuze are also discussed herein。
     文章讨论信号波形参数的选择原则和对引信系统的影响.
短句来源
     NBT-KBT textured ceramics with better properties and strong anisotropy was prepared. The principle of selecting template particles to prepare textured ceramics was analyzed according to technic properties of RTGG and TGG, templated type of adapting to prepare NBT-KBT textured ceramics was confirmed. Plated-like Bi_4Ti_3O_(12) template particles with high aspect ratio was used to prepare NBT-KBT textured ceramics;
     论文结合RTGG和TGG(Templated Grain Growth)的工艺特点,分析了制备织构陶瓷微晶模板的选择原则,确定了适用于制备NBT-KBT织构陶瓷的模板种类,通过对几种满足模板选择原则的典型模板材料进行逐个分析,最终确定出了具有高的生长各向异性的Bi_4Ti_3O_(12)微晶作为制备NBT-KBT织构陶瓷的模板;
短句来源
     Application of oxygen transport equipment in large Chemical plant is introduced. The Principle of selecting oxygen transport equipment from real experience is also discussed.
     介绍大型化工装置输氧设备的应用与使用情况,从实际使用经验出发,探讨输氧设备的选择原则
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  选用原则
     The principle of selecting steel materials for boiler headers, pipelines, water - wall, superheaterr reheater, and economizer etc. for the first million kW grade ultra - supercritical coal burning units in Huaneng Yuhuan Power Plant has been presented, the features of new steel P92, P122, super 304 H, and HR3C, as well as their application situation in power construction at home being briefly described.
     介绍了华能玉环电厂我国首台100 MW超超临界机组锅炉联箱与管道、水冷壁、过热器、再热器、省煤器等的钢材选用原则,简述了P92、P122、super304H、HR3C等新材料特点以及在国内电站建设中的应用情况。
短句来源
     Formulas for both methods have been worked out with the discussion of PR's r value definition and the influence on measuring the calculated value as well as the principle of selecting f0and its practical application.
     分别推导了它们的计算公式,讨论了并联电阻法r值的确定、对测量计算值的影响和R_0的选用原则及其实际应用。
短句来源
     This article shows the actuality that computer aided design software are applied nowadays in china, and describes the necessity that modern enterprise should intensify their use of high performance computer design software, and also introduces the principle of selecting and buying.
     本文介绍了国内目前计算机设计软件的应用现状 ,并从各方面阐述了现代企业加强其计算机高端设计软件的必要性 ,以及相应软件的选用原则
短句来源
     The essential of assistive products is described in the paper including the definition, user, function, classification, feature and the principle of selecting assistive products in order to reference.
     作者简要综述辅助产品的定义、对象、作用、分类、选用原则和特色等基础知识供参考。
短句来源
     The situ ation of over-voltage in power distribution system and the effect of neutral grounding on over-voltage in power distribution system were discussed,and the applying condition of arc-arrester with an automatic tracing compensation function at an earthed neutral with arc-suppression coil was analyzed and the principle of selecting automatic tracing arc-suppression coil was also put forward.
     阐述了配电系统过电压的情况,以及中性点接地方式对配电系统过电压的影响。 对于在配电系统中,中性点经消弧线圈接地方式下,采用自动跟踪补偿消弧装置的应用情况进行了分析,提出了自动跟踪消弧线圈的选用原则
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  “principle of selecting”译为未确定词的双语例句
     Based on the principle of selecting index and the situation of agricultural mechanization project in shanxi province,a index system for performance evaluation of agricultural mechanization project was presented,and the index weight was calculated with AHP.
     基于山西省农业机械化项目的基本情况和类型,以及绩效评价指标的选取原则,在综述了大量相关资料和咨询相关专家的基础上,建立了农业机械化项目绩效评价指标体系,最后采用层次分析法(AHP)计算出农业机械化项目绩效评价指标体系中的各指标变量的权重。
短句来源
     The author expounds the principle of selecting type of the powered support for mining low-coal seam and the main technic parameters of ZY6400/09/20 powered support, and briefly introduces the functions of the automatic control system of the support.
     简述了薄煤层开采液压支架选型的原则及ZY6400/09/20型流压支架的主要技术参数特点,并对ZY6400/09/20型液压支架自动控制系统的功能作了简要介绍。
短句来源
     Merits and demerits between electronic and mechanical controllers are compared,and principle of selecting design scheme is presented.
     比较了电子式和机械式压力控制器各自的优缺点,并提出了选择设计方案的原则。
短句来源
     By the principle of selecting factors, engineering experience and correlation theory and criteria, the primary factors and sub-factors are selected, the standards for judging and the suitable subordinate functions curve can be determined, so the evaluation index system is established.
     根据中小型水库土石坝安全评价因素的选取原则以及实际工程经验、相关理论与规范,针对土石坝安全度评价选取相应的主要的判断因素及子因素,以及制定相应因素的判别标准与合适的隶属函数曲线,即对评价指标体系的构建。
短句来源
     Principle of Selecting Earthing Wire for Single-phase Ground of Arc-suppressing Coil Grounding System
     消弧线圈接地系统单相接地的选线原理和应用
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  principle of selecting
Other approaches vary in detail, but have the same basic principle of selecting words of high significance.
      


In this paper, different from the thermal efficiency consideration as reported in the recent literatures (1, 2, 3, ), an exergy analysis of the ordinary solar thermal power system is presented. It is found that the exergy loss is predominant in evaporator of the system. A way of "sectional matching" is thus suggested to minimize the loss of available energy due to heat transfer temperature drop. The exergy efficiencies of the solar collectors and the second loop system are discussed in detail. The numerical...

In this paper, different from the thermal efficiency consideration as reported in the recent literatures (1, 2, 3, ), an exergy analysis of the ordinary solar thermal power system is presented. It is found that the exergy loss is predominant in evaporator of the system. A way of "sectional matching" is thus suggested to minimize the loss of available energy due to heat transfer temperature drop. The exergy efficiencies of the solar collectors and the second loop system are discussed in detail. The numerical comparison with the data of reference (1) is given. It is shown, by adoption of sectional matching, not only the exergy efficiency of the second loop system can be increased, but also the collectors can be operated in even more preferable temperature ranges, so that the exergy efficiency of the whole system could be increased about 10-25%, while the total surface area required for the collectors decreased 10-25% correspondingly, and thence the capital cost of solar thermal power system could be reduced by 6-13%. Various factors have been discussed. Principles of selecting the main parameters of the sectional matching system have been given finally.

近年来有些文献[1,2,3]从热效率的角度讨论了常规太阳能动力装置的经济性,本文则与此不同,分析了它们的效率,从中发现蒸发器的损失在二次系统中是主要的。为此建议了一种“分段匹配”方式,以减少由于传热温差引起的可用能损失。本文详细讨论了这种装置的集热器和二次系统的效率,并与文献[1]的数据进行了计算比较。计算表明,由于采用分段匹配方式后,不仅二次系统的效率可以得到提高,而且还能使集热器在较合适的温度范围下工作,因而使整个太阳能动力装置的效率较常规方式的可以提高10%~25%,集热器面积相对减少10%~25%,设备投资相对减少6%~13%。本文还讨论了各种影响因素。最后给出了分段匹配时一些主要参数的选择原则。

The author mainly deals with the principles of selecting and commenting the type of retarders and the various requirements for the evaluation of master, group and tangent retarders in the paper. The performance and the test method of car retarders are discussed as well. At the same time analysis and comparison of the existing car retarders in our country are made with respect to the technical and economical aspects. The author recommends that in our marshalling yards the weight-proportional hydraulic retarder...

The author mainly deals with the principles of selecting and commenting the type of retarders and the various requirements for the evaluation of master, group and tangent retarders in the paper. The performance and the test method of car retarders are discussed as well. At the same time analysis and comparison of the existing car retarders in our country are made with respect to the technical and economical aspects. The author recommends that in our marshalling yards the weight-proportional hydraulic retarder be developed as the main type and holds that of the four evalued retarders in our country, ty pe 7501 is the better one for tangent retarder in various hump yards.

本文主要阐述选用和评价减速器的原则,对目的制动和间隔制动减速器的不同要求,车辆减速器的性能与测试。同时对我国现有车辆减速器的技术经济指标进行了分析与比较。建议我国铁路编组站应以发展液压重力式减速器为主。并提出在我国已鉴定的四种车辆减速器中,以7501型车辆减速器更适于在编组线內作目的制动用。

Foil bearing, a newly developed gas bearing, has attracted wide attention because of its low requirement in technology, durability and simple construction,and,especially its exceeding stability at high speed.This paper points out the technical background of foil bearing development, its characteristics and scope of application, and deals synthetically with the results of the test of three-segment foil bearing carried out in recent two years.Finally, analyses are made of the theory of foil bearing lubrication...

Foil bearing, a newly developed gas bearing, has attracted wide attention because of its low requirement in technology, durability and simple construction,and,especially its exceeding stability at high speed.This paper points out the technical background of foil bearing development, its characteristics and scope of application, and deals synthetically with the results of the test of three-segment foil bearing carried out in recent two years.Finally, analyses are made of the theory of foil bearing lubrication and the principle of selecting design paramater.

近年来发展起来的一种新型气体轴承——薄膜轴承,由于其工艺要求低、寿命长、结构简单,更突出的是在高转速时有极好的稳定性,从而引起各方面的注意。本文指出薄膜轴承发展的技术背景,其特点和适用范围;并对二年来关于三弧型薄膜轴承试验结果进行初步的综合性评述。最后分析了薄膜轴承的润滑机理和设计参数的选择原则。

 
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