近似值

基本解释 (translations)

approximation  ·  approximations

词组短语

approximate value · asymptotic value · approximate quantity

与近似值相关的网络例句 [注：此内容来源于网络，仅供参考]

In addition also introduced the differential theorem of mean in the proof equality and the inequality, the certificate equation root existence, asks the limit, to ask the approximate value, as well as aspect and so on research function condition should thus deepen to the differential theorem of mean understanding.

此外还介绍了微分中值定理在证明等式和不等式、证明方程根的存在性、求极限、求近似值，以及研究函数性态等方面的应用，从而加深对微分中值定理的理解。

A computational formula of approximate value of minimum point and minimum value for some particular functions was infered by interpolation method of equidistant points.

利用等距节点的插值的方法，推导出某些特殊函数的最小点及最小值的近似值的计算公式。

It should be stressed that these figures are approximate and vary according to your personal lifestyle .

应该强调的是，这些数字都是近似值，并且随着个人生活方式的不同而有所不同。

It is not an approximate value.

它不是一个近似值。

First of all, Cauchy inequality is used to obtain a basic inequality. Secondly, the functions of basis are made by Galerkin method, and the error estimates of eignevalues are obtained by Cauchy inequality. At last, the computational method of the approximate value of the eigenvalues turns out immediately, and accuracy of the-th approximate value is estimated by the n-tb approximate value.

首先利用Cauchy场不等式证明了一个基本不等式；其次采用Galerkin方法来构造适当的基函数，并利用Cauchy不等式给出了其特征值计算的误差佑计式；最后得到计算梁横向振动问题的特征值的近似值的算法，而且可以用第n次近似值来估计第n-1次的近似值的精确度。

Firstly, this paper investigated roundly the basic theory of the ambient vibration method, analyzed systematically the main methods of ambient vibration identification, and discussed their advantages and disadvantages. Then we established the finite element model of structural dynamics and test model and analyzed their mutual relation, improved MUSIC method and correlation function method in the harmonic identification, and gave the subspace method and correlation function method based on continuous model, which is multi-harmonic retrieve technique. And then, this paper also puts forward least-squares method to estimate directly structural physical and modal parameters; this approach replaced the derivative operator in the continuous time model with an equivalent approximation, and estimated the physical parameters of structures by the least-squares method. And then, we discussed the approximation methods of derivative and their convergence. Finally, this paper researched the modal parameters of a frame structure by the simulation and test. The results demonstrated that subspace method, correlation function method and the least-squares method are effective and stable respectively.

全面地研究环境振动识别方法的基本理论，系统地分析环境振动识别方法的主要方法，讨论它们的优点和不足；建立结(来源：6666AB44C论文网www.abclunwen.com)构动力学的有限元模型和试验模型，分析有限元模型与试验模型之间的相互关系；改进谐波识别中的MUSIC识别方法和相关函数识别方法，给出大型结构模态识别的连续型的子空间分解识别方法和相关函数识别方法，这个方法是多元谐波识别方法；提出直接识别结构的物理参数和模态参数的最小二乘方法，这个方法利用导数的近似值代替导数值，并运用最小二乘方法识别结构的物理参数，讨论导数近似值的选择方法，分析算法的收敛性；通过仿真计算和模型实验，研究高层框架结构的模态参数识别，验证子空间分解识别方法、相关函数识别方法和最小二乘识别方法的有效性，算法的稳定性；从理论和试验两个方面分析和研究噪声对识别精度的影响，影响识别精度的因素，以及部分模态成分的模态参数不能够被识别的原因。

Algebraic formulas for calculation of modal field with given approximate value of propagation constant are also presented .

导出了用微扰法计算渐变折射率平面波导传播常数各级近似值的代数递推公式，并给出了由传播常数近似值计算模场近似表达式的代数公式。

Great comic artists assume that truth may bear all lights, and thus they seek to accentuate contradictions in social action, not gloss over or transcend them by appeals to extrasocial symbols of divine ends, cosmic purpose, or laws of nature.

这样，对于数学家们来说是非常惊诧的，例如，薛定谔方程式并不是氢原子的准确描述，而只是某种程度上的近似值。它近似于另外一种描述磁性偶极子相对效果的方程，而这个方程本身又是一套不定量子场论方程的近似值。

I.! y P,{7 v: R; O0 D INTRODUCTIONIn most of the previous studies like [1-3], the effect of SRS in DWDM fiber opticsystems has been treated under various assumptions like undepleted pump approximation, wavelength independent fiber loss coefficient, triangular approximation of Raman gainprofile, negligible loss of energy whenever a short wavelength photon is transformed into a long wavelength photon (i.e., l i / l k ~ 1), equal power loading in all the wavelength channels and equal channel spacing.

P _ W/ I 在以往的绝大多数研究中，如[1-3]，人们都认为， SRS 在 DWDM 光纤系统中的影响是在诸多假设，如未衰减泵近似值，波长依赖光纤损耗系数，喇曼增益表的三角近似值，当短波光子被转变为长波光子时(i.e。， l i / l k ~ 1可忽略不计的能量损耗，各波长通道均等的动力负载以及均等的信道的频率间隔。

The accuracy of safe approximations is discussed. The computation method of safe approximations is put forward.

在探讨安全近似值保守程度的同时，对安全近似值的计算方法给予总结。

与近似值相关的网络解释 [注：此内容来源于网络，仅供参考]

approximate number：近似值

approximate method 近似法 | approximate number 近似值 | approximate representation 近似表示

approximate solution：近似值

倍数multiple | 近似值approximate solution | 对数 logarithm

approximate value in excess：过剩近似值

approximate value 近似值 | approximate value in excess 过剩近似值 | approximately equal 近似等于

approximate value：近似值

approximate 近似的 | approximate value 近似值 | approximation 近似法

approximate value：近似值, 概算价值

approximate treatment | 近似计算 | approximate value | 近似值, 概算价值 | approximate | 近似的, 大约的 近似, 接近, 接近, 约计

approximate value：近似值Btu中国学习动力网

approach 接近;趋近Btu中国学习动力网 | approximate value 近似值Btu中国学习动力网 | approximation 近似;略计;逼近Btu中国学习动力网

lower approximate value：下近似值,偏小近似值

lower approach 下游引航道 | lower approximate value 下近似值,偏小近似值 | lower apse 近星点

approximate value measure：近似值度量

approximate value 近似值 | approximate value measure 近似值度量 | approximate variance of the ratio estimate 比率估计的近似方差

approximation：近似值

3、了解会计数字的近似值性质:对于会计数字的统计性有了认识,便可了解会计数字先天上有其近似值(Approximation)的性质,则对于成本的计算,便不至如二次世界大战前的钻牛角尖,竭力想求计算的精确;现代成本会计学,对于过份求数字的精确,

approximated value：近似值

approving manager 批准管理员 | approximated value 近似值 | approximation 近似值