助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   this approximation 的翻译结果: 查询用时:0.193秒
图标索引 在分类学科中查询
所有学科
物理学
数学
更多类别查询

图标索引 历史查询
 

this approximation
相关语句
  这种近似
     ΔH,ΔG,ΔSand hydrogen isotope equilibrium pressures of the hydrogenating reaction have been calculated based on this approximation.
     在这种近似下,计算了不同温度下Zr与H2、D2、T2反应的ΔH、ΔG、ΔS及氢化反应平衡压力,导出了与温度的依赖关系.
短句来源
     this approximation is reliable, and the conergency is also good under mild potential change.
     结果表明 ,对于势变化趋势的缓慢情形 ,这种近似求解结果可靠 ,收敛良好。
短句来源
     This approximation is reliable and the convergency is also good under mild potential change.
     结果表明,对于势变化趋势的缓慢情形,这种近似求解结果可靠,收敛良好。
短句来源
     The pseudo-differential operator of parabolic equation is approximated to a wide-angle form by the Feit-Fleck method. The error brought by this approximation is analyzed.
     对抛物方程中的伪差分算子进行Feit-Fleck宽角近似处理,分析了这种近似所带来的误差;
短句来源
     In this approximation, it is assumed that the effect of radiative heat transfer would be so strong that the temperature of the medium could be regarded as uniform.
     在这种近似中,突出地强调了辐射热传导的作用,即认为介质中的温度分布由于热传导极强而可以近似地看成与空间无关.
短句来源
更多       
  这一近似
     It is also shown that the postman route obtained by this approximation algorithm is optimal if the given windy graph is Eulerian.
     文中指出:当所给风向图是欧拉图时,由这一近似算法求得的投递员路线是最优的投递员路线。
短句来源
     In NASA standard (NASA RP 1092), k was taken approximately as0.16,that if this approximation value is still suituble for the most resins in China is a question to be dis-cussed.
     在美国航空航天局制定的有关方法中(NASA RP1142)k近似取为0.16,对于国内大多数的树脂基复合材料来说,是否能够采用这一近似参数尚需讨论。
短句来源
     The unified-colored-noise approximation proposed by Jung and Hanggi is extended to the multi-dimensional case in this paper. Then, the Langevin equation and FokkerPlanck equation of colored cubic model for single mode dye-laser model are derived with this approximation method.
     本文首先把Jung和Hanggi提出的统一色噪声近似推广到多维情形,从而导出了这一近似下单模染料激光色立方模型的朗之万方程和福克-普朗克方程;
短句来源
     Taking the symmetric slab waveguide as an example,we show that radiation modes of a weakly guiding planar optical waveguide can be approximated by the free space modes,their field expression and normalization constants are simple and understandable physically and can be obtained directly without any calculation. By applying this approximation,the far field and radiation loss calculations caused by random wall imperfections have been significantly simplified.
     以对称平板波导为例,说明弱导引的平面光波导辐射模可以用自由空间模近似表示,其场表达式以及归一化常数变得十分简单、直观,不必通过计算而可以直接写出.应用这一近似,平板波导界面随机的畸变所引起辐射场的远场分布以及辐射损耗的计算可以大大简化
短句来源
  “this approximation”译为未确定词的双语例句
     and reaction equilibrium pressures of Pd or Y with N_2, H_2 and CO have been calculated based on this approximation.
     及反应平衡压力,导出了反应平衡压力与温度的关系。 比较各反应平衡压力,得到N_2、H_2、CO在金属Pd表面吸附能力的强弱关系,提出减弱Pd吸附CO的方案。
短句来源
     The vibration energy or the electronic and vibration entropy of the gaseous molecules are approximately used as the energy or entropy of the solid. In this approximation, thermodynamic functions △H0, △S0, △G0 and hydrogen isotopes equilibrium pressure of the hydrogenating reaction have been calculated .
     在ZrH2(D,T)(s)的E和S的过程中,以气态分子总能量中的振动能Ev代替该分子处于固态时的振动能量E,以电子和振动熵SEv代替分子处于固态熵的近似方法,计算了不同温度下金属Zr与氢同位素反应的△H0、△S0和△G0以及氢化反应平衡压力,并导出了氢化反应平衡压力与温度的关系。
     The vibrational energy, electronic and vibrational entropy of the molecules in their solid states are assumed, ΔHAEE, ΔS and ΔG and nitrogen equilibrium pressures of the nitrogenating reaction have been calculated based on this approximation.
     以气态分子总能量中的振动能EV代替该分子处于固态时的振动能量,以电子运动和振动运动熵SEV代替分子处于固态的熵的近似方法,计算了不同温度下金属Pd与N2反应的ΔH苓、ΔS苓、ΔG苓及氮化反应平衡压力,导出了氮化反应平衡压力与温度的关系.
短句来源
     With this approximation the measured contact angles of 1-bromonaphthalene anddiiodomethane on the silicagel plate are 16.1° and 35.8 ° respectively, well agreeing withliterature reported, and closed nonpolar component of the surface tension, 42.7 and41.7mN/m, are calculated correspondingly.
     由此测得的1-溴代萘和二碘甲烷在硅胶板上的接触角分别为16.5°和35.8°,与文献值十分吻合。 相应地求得硅胶表面能的非极性成分分别为42.7和41.7mN/m,两者较为一致。
短句来源
     Δ H , ΔS , ΔG  and hydrogen equilibrium pressure of the hydrogenating reaction have been calculated based on this approximation and very obvious isotope effects have been observed.
     导出了Co与氢同位素气体反应的ΔH 、ΔG 、ΔS 及平衡氢压力与温度的关系 .
短句来源
更多       
查询“this approximation”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  this approximation
This approximation method is used to develop a simulation method of the sample path of linear fractional stable motions.
      
The comparison of the predictions of statistical approach with the results obtained on the basis of the approximation of homogeneous metastable phase made it possible to refine the domain of the applicability of this approximation.
      
The solutions obtained in this approximation describe only weak nonlinear effects and the region of their applicability is limited, naturally, to small values of the Grashof number (no larger than 103).
      
A solitary wave is characterized in this approximation by two variables - the energy density per unit length measured along its crest, and the direction of the normal to the wave crest.
      
The relaxation of harmonic perturbations in this approximation was considered by Levich [3].
      
更多          


In this paper, further simplifications are suggested for the two-fraction method based on the solubility function and the treatment of fractionation data by using Tung functipn which were proposed by the present authors in previous publications.The evaluation of the distribution parameters for a fraction from two intrinsic viscosity measurements in a good solvent and in a θ-solvent is shown to be not practical, because the required precision is not attainable in ordinary measurements. A new approximation is...

In this paper, further simplifications are suggested for the two-fraction method based on the solubility function and the treatment of fractionation data by using Tung functipn which were proposed by the present authors in previous publications.The evaluation of the distribution parameters for a fraction from two intrinsic viscosity measurements in a good solvent and in a θ-solvent is shown to be not practical, because the required precision is not attainable in ordinary measurements. A new approximation is suggested by taking the phase separation parameter Q to be equal to the volume ratio R of the concentrated and dilute phases. Then, the distribution parameters for the two-fraction method can be readily evaluated. Actual calculations show that the distribution parameters thus calculated is not very sensitive to the value of Q taken, and therefore this approximation is justified as a tentative simplification of the two-fraction method for the determination of molecular weight distributions.In the treatment of ordinary fractionation data by means of Tung function, all fractions except the first and the last ones can be approximated by a straight line for the integral distribution curve. The line passes through the points M(1 = 1/2) = Mη, M(1 = 0) = 1/2Mη which corresponds roughly to a straight line with equal slope as the Tung function at M1/2 with b = 2.7-3.0. This leads to a considerable saving in computation but very slight difference to the result.The suggested simplifications have been applied to a sample of PMMA. The integral distribution curve obtained by the suggested method are closer to the actual one obtained by sedmentation rate method than the usual Schulz-Dinlinger treatment.

本文对作者等以前提出的应用溶度函数的简易分级法,和应用董履和函数处理沉淀分级数据作了进一步的简化和考验。用在良溶剂和θ溶剂中测定两个特性粘数值来决定 级分的分布参数,在一般的实验条件下不可能达到所要求的精确度,因此改用分相参数Q=R的近似来决定简易分级法中两个级分的分布参数,实际的计算说明Q的取值可以有相当大的变化范围而对结果的影响不大,这样对简易分级法提供了一个简便的权宜办法。对应用董履和函数计算普通分级法的分级数据时,除第一级分和最后级分外,其他各级分的累积分布均可采用直綫近似,此直綫通过M(I=1/2)=(?)_η,M(I=0)=1/2(?)_η两点,可以简省计算,而对结果的影响极小。本文中对一个聚甲基丙烯酸甲酯试样的两种分级数据进行计算的结果,说明上面两种方法都比习惯应用的Schulz-Dinlinger法计算结果更接近于用沉降速度法测定的分子量分布。

The interrelation between traditional quantum field theory and composite quantized field theory is investigated. It is found that they are compatible and interrelated in the ladder approximation, whereas beyond this approximation the interrelation is not established.

本文探讨了现有量子场论和量子化复合场论之间的内在联系。发现在梯形近似下,它们是自洽并有内在联系的;但在更一般的非梯形近似的情况下,这种内在联系并未找到。

Linear form functions are commonly used in a long time for a toroidal volume element swept by a triangle revolved about the symmetrical axis for general axisymmetrical stress problems. It is difficult to obtain the rigidity matrix by exact integration, and as approximations close to the symmetrical axis, the accuracy of this approximation deteriorates very rapidly. The exact integrations have been suggested by some authors for the calculation of rigidity matrix. However, it is shown in this paper that...

Linear form functions are commonly used in a long time for a toroidal volume element swept by a triangle revolved about the symmetrical axis for general axisymmetrical stress problems. It is difficult to obtain the rigidity matrix by exact integration, and as approximations close to the symmetrical axis, the accuracy of this approximation deteriorates very rapidly. The exact integrations have been suggested by some authors for the calculation of rigidity matrix. However, it is shown in this paper that these exact integrations can only be used for those axisymmetric elastic bodies with central hole. For solid axisymmetric body, it can be proved that the calculation fails due to the divergent property of rigidity matrix integration. In this paper, a new form function is suggested. In this new form function,the radial displacement u vanishes as radial coordinates r approach to zero. The calculated rigidity matrix is convergent everywhere, including these triangular toroidal element closed to the symmetrical axis. This kind of elenent is useful for the calculation of axisymmetric elastic body problem.

轴对称弹性力学问题的有限元分析长期以来都是采用三角圆环有限元和线性形状函数。由于积分困难,常用近似积分求得刚度矩阵,这种近似积分对于靠近旋转对称轴的元素,误差很大,所以,长期以来,被认为不满意的办法。也有用精确积分计算刚度矩阵的.但本文指出,这种积分只适用于有中孔的轴对称体。对于实心的轴对称体而言,这种刚度矩阵都不收敛,计算是无效的.本文提出了一种新的形状函数,当径向座标r接近于零时,这种形状函数的径向位移u自然地接近于零。如果用这种新的形状函数,则由此计算求得的刚度矩阵,不论三角圆环有限元的位置是否靠近轴线.都是存在的。这种有限元,就能用于计算实心的轴对称体的问题。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关this approximation的内容
在知识搜索中查有关this approximation的内容
在数字搜索中查有关this approximation的内容
在概念知识元中查有关this approximation的内容
在学术趋势中查有关this approximation的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社