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  “change an”译为未确定词的双语例句
     The results show that the microstructure of SKH51 has no significant change,an obvious oxidation layer is formed on the surface of 65Mn sample.
     结果表明,SKH51试样的组织没有明显变化,65Mn试样表面形成了明显氧化层。
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     Photodynamic therapy (PDT) is based on the relatively old concept that lightirradiation can change an inert substance to an active one.
     光动力学疗法(photodynamic therapy, PDT)基于一个古老的概念,即光照射能将惰性物质转变成活性物质。
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     A Study on Audit Quality from the View of Accounting Firm Change: An Empirical Analysis
     从会计师事务所变更看审计质量一个实证分析
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     Urban greenbelt eco-service value of Hangzhou City under effects of land use change:An evaluation with CITYgreen model.
     基于土地利用变化的杭州市绿地生态服务价值CITYgreen模型评价
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     On the assumption that the air temperature will increase 1.5℃, precipitation will increase 5% and the distribution of vegetation won't change, an improved energy use efficiency model and 1 km AVHRR-NDVI data are used to estimate the effect of climate change on terrestrial net primary productivity in China.
     在假定气温平均升高 1.5℃ ,降水平均增加 5 % ,地表植被分布未发生变化的情况下 ,利用改进的光能利用率模型和 1992年 12个月的 1kmAVHRR NDV1资料及地面气候资料对气候变化对中国陆地植被净第一性生产力 (NPP)的影响进行了初步分析。
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  相似匹配句对
     C~(An)(?)
     C~(An)A~(B(?)
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     An E.
     建议了一种E .
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     Change
     变化
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     Obstacles in Strategic Change of an Enterprise
     浅析企业战略变革的障碍
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  change an
Empirical data is used to follow the maturation and change an evoked set exhibits as the decision-maker proceeds to a final choice.
      
In these additional experiments, we use instructions to change an impersonal exchange situation to a personal exchange situation.
      
In these additional experiments, we use instructions to change an impersonal exchange situation to a personal exchange situation.
      
The area of theory refinement is concerned with the use of training data to automatically change an existing theory so that it better fits the data.
      
Instructional strategies specified by parameters makes it possible, at the click of a button, to change an instructional strategy.
      
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This article deals with the phase transform system in detail. In short, the transform properties of field are discussed with the phase conception of field. A phase transform system can make the phase distribution of an incident field turned into the desirable phase distribution of the emergent field. Our analysis starts with the thin lens as a phase transform system, then derive the phase transform field of the thick lens, and at last put forward the Fresnel phase transform system, which can change an...

This article deals with the phase transform system in detail. In short, the transform properties of field are discussed with the phase conception of field. A phase transform system can make the phase distribution of an incident field turned into the desirable phase distribution of the emergent field. Our analysis starts with the thin lens as a phase transform system, then derive the phase transform field of the thick lens, and at last put forward the Fresnel phase transform system, which can change an incident spherical wave into an perfect emergent spherical one.

本文描述了位相变换系统,即用光场的位相概念来讨论光场的变换性质。位相变换系统能够把已知的入射光场的位相分布状态变换成所需要的出射光场的位相分布状态。文章的分析是从薄透镜作为一个位相变换系统入手的,然后导出厚透镜的位相变换光场,最后提出了入射球面波变换成完善的出射球面的Fresnel位相交换系统.

This paper describes the preliminary analyses and experimental results of the tangential-hole gas supply bearings (abbrev. TSB) for the medium-pressure cryogenic expansion turbine installed in a 150 Nm~3/h oxygen plant.According to the pattern of gas flow into the radial clearance of the TSB, the circumferential flow velocity of gas in the bearing radial clearane was calculated from the bearing gas consumption. The effects of some factors, such as the bearing radial clearance, the direction of gas supply, the...

This paper describes the preliminary analyses and experimental results of the tangential-hole gas supply bearings (abbrev. TSB) for the medium-pressure cryogenic expansion turbine installed in a 150 Nm~3/h oxygen plant.According to the pattern of gas flow into the radial clearance of the TSB, the circumferential flow velocity of gas in the bearing radial clearane was calculated from the bearing gas consumption. The effects of some factors, such as the bearing radial clearance, the direction of gas supply, the Pearing supply pressure etc., on the instability onset speed (the onset speed of self-excited whirl) have been studied.Through the experimental study, the optimum radial clearance of the TSB has been obtained, and it is higher than that of the radial-hole gas supply bearings (abbrev. RSB) of the model turbine developed. While using the TSB, it is necessary to take notice of that the direction of gas supply must be opposed tp the rotating direction of the rotor. Otherwise, the operating stability of the bearing will be badly decreased. Change a RSB to a TSB is a simple and easy measure of increasing the instability onset speed in the cryogenic expansion turbine of small size and high speed, and its extended application is convenient.

本文叙述了150Nm~3/h制氧机中压低温透平膨胀机的切向小孔供气轴承的初步分析及试验结果.根据切向供气轴承径向间隙中的气体流动模型,以轴承耗气量计算了轴承径向间隙中的气体周向流动速度.试验研究了径向间隙、供气方向、供气压力等因素对失稳转迷(自激涡动起始速度)的影响.得出了切向供气轴承的最佳径向间隙,其数值要大于研制样机径向供气轴承的最佳径向间隙.使用切向供气轴承时,需注意供气方向必须与转子旋转方向相反,否则,轴承运转稳定性将显着降低.在小型高速低温透平膨胀机中,将径向供气轴承改为切向供气轴承是提高失稳转速简易可行的措施.

Decision Programming--an optimum method in random system of linear structure.The Characteristic of this method lies in the linear optimization principle combining with Bayesian decision rule, which changes a multi-constraint - uncertain problem into a linear programming model, and gets the solution by means of linear programming. It aims at probing definite solutions of uncertain problems trying to eliminate difference between models and practice. A methodology and an approach to random optimization are...

Decision Programming--an optimum method in random system of linear structure.The Characteristic of this method lies in the linear optimization principle combining with Bayesian decision rule, which changes a multi-constraint - uncertain problem into a linear programming model, and gets the solution by means of linear programming. It aims at probing definite solutions of uncertain problems trying to eliminate difference between models and practice. A methodology and an approach to random optimization are provided.This paper gives theoretical proof in detail.It also provides an effective transformming method combining with an example of practical production program with random parameters. The results from computer FELIX C-256 indicates that this method has some theoretical and practical value.

决策规划法——线性结构随机系统中的优化方法。这种方法的特点,是线性最优化原理结合贝叶斯决策准则,将一个多约束不确定性问题转化为一个线性规划模型,进而采用线性规划求解。其目的是探讨不确定性问题的确定性解法,试图消除模型与实际可行性之间的差距,为随机问题优化提供某种方法和途径。 文中给出了详细的理论证明,并结合随机参数的生产计划实例,提供了一个有效的变换方法。在FELIX C—256计算机上所获得的结果,说明了这种方法具有一定的理论和实用价值。

 
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