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两组公式
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  two formulas
     Several kinds of pressure coefficient and temperature coefficient of ultrasonic velocity in organic liquid calculated by two formulas tally with each other and are in good agreement with the experimental results.
     比较结果表明,两组公式计算出的几种有机液的声速压力系数和温度系数相互吻合,且均与实验值吻合较好.
短句来源
  two sets of formulas
     The two sets of formulas for chord and are methods are derived by using vector algebraic method and some examples are listed for calculating and contrasting.
     用矢量代数方法导出了弦步法与弧步法两组公式并作了例算对比。
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  “两组公式”译为未确定词的双语例句
     Maxwell-Garnett(MG) formula and Bruggeman formula is applicable for spherical particles DS.
     Maxwell-Garnett公式和Bruggeman公式是适用球形颗粒复合体系的经典计算公式,本文将两组公式及Maxwell-Garnett扩展公式运用于羰基铁粉分散体系。
短句来源
     Drawing support from the visual data analyzing function of the software MATLAB, the value divergence between the formulas and the corresponding one fitting to the infinite user system are compared.
     借助于MATLAB的可视化数据分析功能,比较了这两组公式在数值上的差异; 指明了两组公式的适用条件。
短句来源
  相似匹配句对
     TWO DISTANCE FORMULAS
     个距离公式
短句来源
     Two Mean Value Formulae
     个均值公式
短句来源
     ] group in Shanbei Jin dialect.
     ]声母。
短句来源
     TWO COMBINATIONAL NUMBER FORMULAS
     合数公式
短句来源
     There was little difference of side effects in the two groups.
     安全性无差异。
短句来源
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  two formulas
The problem of parameters selection for potential function used to initialize cluster centers is discussed, and two formulas are given for determining these parameters.
      
Synthesis is made with two formulas, one multiplicative and one additive subtractive that can give rise to negative overall priorities.
      
Some numerical results with be presented to compare the two formulas.
      
With the aid of the principle of inclusion-exclusion, two formulas are presented.
      
The paper also proposes two formulas that calculate the popularity coefficient of a streaming media on server and proxy, and caching replacement policy.
      
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  two sets of formulas
Two sets of formulas for scattering parameters are presented for multiplexers having parallel and series configurations with a common junction.
      
These evaluations lead easily to the first two sets of formulas for qij.
      


The generalized eigenvalue problem of two symmetrical matrices is interpreted as the eigenvibration of acertain structure. Based on the amplification factors of forced vibrations, two sets of formulas for the upper and lower bounds of aneigenvalue are derived. Thus various formulas for the upper and lower bounds are unified and systematized by this familiar concept in engineering. It is hoped that our treatment will be helpful for engineers to understand and to use these formulas.

本文把对称正定矩阵的广义本征值问题类比于结构的固有振动问题,并利用放大倍数导出了本征值上下限的两组公式。这样我们就把数学上不同的多种上下限公式,统一在力学界和工程界常用的一个概念之下,这将有利于推广使用各类上下限公式。

The paper is a supplement of the previous article in which a simplified formula for atmospheric correction in satellite laser ranging (equation (2). in the paper) has been given. The deductive process of the formula is given in this paper, and in order to compare the accuracy between Marini's formula and the simplified one, the numerical computations for different temperature, air pressure and latitude have been done. It is shown in the Table that the difference between two formulas is only 2 cm above 20 elevation,...

The paper is a supplement of the previous article in which a simplified formula for atmospheric correction in satellite laser ranging (equation (2). in the paper) has been given. The deductive process of the formula is given in this paper, and in order to compare the accuracy between Marini's formula and the simplified one, the numerical computations for different temperature, air pressure and latitude have been done. It is shown in the Table that the difference between two formulas is only 2 cm above 20 elevation, although the temperature factor has not been included in the equation(2).

本文是上文[1]工作的补充。文中给出了人卫激光测距中大气修正的简化公式的推导过程,并作了数值计算,结果表明:尽管在简化公式中没有包含温度因子,但它与Marini的精确公式的结果相差甚小,在地平高度20°以上,两组公式的差别小于2厘米。简化公式适用于分米级精度的测距系统资料分析。

To predict the longitudinal compession strength Xc of uniaxial fibre-rein-forced composites constitutes very important part of micro-mechanics in the research of mechanics of composite materials.N.F.Dow,B.W.Rosen and others evaluated X_c based on the principle of energy,having adopted in the model of composition a fibre of rectangular cross-section,the derived two formulae of Xc in pair hold simplified forms.The present article introduces a fibre of circular cross-section,considering∈_m=∈_m(x,z),γ_m=γ_m(x,z),and...

To predict the longitudinal compession strength Xc of uniaxial fibre-rein-forced composites constitutes very important part of micro-mechanics in the research of mechanics of composite materials.N.F.Dow,B.W.Rosen and others evaluated X_c based on the principle of energy,having adopted in the model of composition a fibre of rectangular cross-section,the derived two formulae of Xc in pair hold simplified forms.The present article introduces a fibre of circular cross-section,considering∈_m=∈_m(x,z),γ_m=γ_m(x,z),and two corresponding formulae of X_c in pair have been derived.Theoretically,the fromulae of present article should be closer to the reality.The predicted values of Xc of composite E-Glass/Epoxy have been cal-culated,and the results from the two pairs of formulae are plotted together for the convenience of comparison.

对单向纤维增强复合材料纵向压缩强度 X_c 的预测是复合材料研究中细观力学的重要的容之一。道、罗森等人根据能量原理对 X_c 进行了估算。在他们采用的复合模型中,纤维具有矩形横载面,导出的关于 X_c 的一组两个公式,形式较为简单。本文引入圆形纤维载面,即考虑∈_m=∈_m(x,z),γ_m=Y_m(x,z)导出了相应的关于 X_c 的一组两个公式。理论上讲,导出的公式应当是更加接近实际。附录中计算了 E 玻璃/环氧树脂复合材料 X_c 的预测值,并将两组公式的曲线作了对比。

 
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