查询词典 first approximation

Nature of Light, Geometrical Optics, and Gaussian Approximation, Wave Optics, Interference of Light, Coherence, Polarization of Light, Diffraction of Light.

光的性质、波动光学、几何光学及高斯近似、光的干涉、相干性、光的偏振、光的绕射、一些重要的应用实例。

Subsequently, an analysis of global approximation property of the model is performed with a learning algorithm of neural net devised.

再次，分析了模型的全局逼近性，设计了网络学习算法。

The quality of approximation is as good as polygonal boundary reduction, and it can process the data online in a constant buffer.

算法具有多边形约简算法相同的优良的近似质量，并可在固定数据缓冲区空间内在线运算。

After the background of problem has been described, graphical method is used to determine the stroke of cylinder, and then approximation method is used three times to get the answer.

在介绍了问题的背景后，使用图解法首先确定气缸的行程及其规格，然后通过从一边试探的方式，三次试探就得到了问题的解答。

Using Chebyshev approximation method,we designed a FIRlowpass differentiator suit for airborne gravimetry application,and simulate a mathematical model to test the reliability of this filter.

根据契比雪夫逼近理论，设计了适用于航空重力测量应用的有限冲激响应低通差分器，利用模拟模型对滤波器的性能进行了验证。

Hamilton modeling and generating function method for relative motion were introduced. Approximation of Hamilton function for relative motion of satellite formation and its impact on modeling accuracy were interviewed.

采用分析力学方法研究DSS卫星间的相对运动，讨论了DSS相对运动的Hamilton力学建模与生成函数近似求解方法，分析了相对运动的Hamilton函数近似阶数对求解精度的影响。

Optimal control of DSS formation adjusting based on Hamilton Mechanics and generating function method was investigated. An iterative way of solving the two-point boundary value problem induced by optimal control by relative motion generating function approximation was proposed.

基于考虑J_2项的DSS相对运动Hamilton力学模型和生成函数方法研究了DSS构形调整的最优控制问题，提出了求解最优控制两点边值问题的相对运动生成函数近似迭代方法。

Applying atomic many-body theory to analyse the Goldston diagrams of effective Hamiltonian and wave operator about electron-electron correlation for open shell atoms, we use a simple method to evaluate the effective Hamiltonian and calculate the correlation effectes of Corbon with HFS model as a zeroth order approximation. Making contrasts with the experiment and the calculation based on HF model we get pleased results.

应用原子多体理论对开壳层原子中电子关联效应的有效哈密顿量及波算符的Goldston图进行了分析，在此基础上得到了计算有效哈密顿量的简单方法；以HFS模型为零级近似对中性碳原子基态的关联效应进行了计算并通过与实验结果及其他文献基于HF模型进行的计算相比较，得到了令人满意的结论。

The magnet size （here the angle of the magnetic pole was used） modification to eliminate the phase shift was estimated by using a hard-edge approximation to the magnetic field distribution along a circle.

给出了由滑相角度估算磁极张角修正量的方法，根据滑相角度计算磁场沿圆周的平均值与等时性场的偏差；为消除此偏差，将磁场沿圆周的分布做硬边界近似，估算出磁极几何尺寸的修正量。

With the idea of finite approximation, we study a new solution method for the satellite altimetry problem. Our result shows that if the continental part of the earth is sphere cap, then the solution of satellite altimetry problem can be transformed into a linear system of equations with variants of the coefficients of spherical harmonic series. We prove that the linear system of equations is separated about the orders of spherical harmonic series.

研究了球界面下卫星测高问题的解法，利用有限逼近方法得到了下列结论：若陆地部分是球冠，则卫星测高问题的解可以转换成关于球谐级数位系数的线性方程组，并且位系数的阶和次是以分离形式出现的，从而确保该解法具有实用意义。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。