查询词典 method of approximation

In this paPer, lattice dynamics of a monatomic chain arestudied by employing the method of multiple scales combined withquasi-discreteness aPproximation.

本文，我们主要通过引进多重尺度，并利用准离散近似方法对单原子链中的晶格动力学作了一些研究。

In this paper, a method of digital approximation is used to approach the function of crustal movement, px.y.

本文运用数值逼近法去逼近地壳运动函数p=f，进而分别导出了按条件观测平差和按间接观测平差的严密公式。

The method of Fourier series approximation was used for determining the Future Freight rate model as function of time and current spot freight rate. It was shown that it is very flexible and versatile since it can be applied quickly and easily to any main shipping route.

傅立叶级数近似值法被用来确定以时间和当前即期费率构建的函数的远期费率模式，此种方法是非常灵活多变的，因为它可以被快速容易地应用于各个主要航线。

In this paper, we study the decreasing types of the output of oil field opened by pouring water and the successive approximation method of its solution in mathematics and seepage flowing mechanics.

从数学和渗流力学概念对注水开发油田产量递减类型和判别求解方法进行了研究，提出产量递减类型应为指数递减和双曲线递减两种类型；双曲线递减的递减指数n的变化范围应为0＜n＜∞；递减类型判别和递减参数求解方法可以根据最小二乘法原理，采用数学逐次逼近法直接求解产量随时间递减的关系式。

The hydrodynamic theory of viscous lubrication is studied from Navier-Stokes differential equations ,by the method of successive approximation based upon the smallness of the film thickness.

本文基於Navier-Stokes氏微分方程式，研究粘滞性液体层的滑润作用；此种流体动力学的理论，乃依据液体层之薄度进行续步渐近之解法而得。

The procedure is based on the concept that the critical load of a frame without sidesway is the same as the smallest value among these critical loads of the compression members of the frame with partially restrained ends, and the critical load of every compression member may be determined by the method of successive approximation.

将组成刚架的各桿件视为两端受不同约束的桿件，用静力学的方法求出此等桿件相应的临界荷重，其中最小值即为刚架的临界荷重，举有实例以示演算程序。

At first, an approximated mathematical model is presented. Then, the system manager can compute the optimal control policy via the method of successive approximation. Based on the above-mentioned algorithm, we design an intelligent system with feedback control to regulate the allocation of limited channels of trunk circuit. This system will continuously detect the status of whole cellular network. Once the system parameters cross the predefined threshold, the recomputing mechanism will be activated.

首先针对系统的近似数学模型先將其定义出来，然后就可以用连续逼近法將最佳控管决策计算出来，这样的最佳决策演算法我们把它设计在一个有迴授机制的智慧型决策系统裹，此决策系统將不断地侦测行动通讯网路运作的情形，一旦网路参数变化超过某个预定的临界值时，整个最佳决策演算法將被启动，系统的近似数学模型將依新的参数重新定义，接下来同样地写出最佳方程式並用连续逼近法计算出新的最佳控管决策。

Used traditional measurement equipment and a new method-optimal approximation between measured and numerical calculation values, the coefficient of thermal conductivity of cornea was measured. It can be expressed by the equation of λ=0.10395+2. 75156×10〓t.

本文在不改变现有传统测定设备的前提下，采用一种新方法—通过数值计算角膜表面温度变化规律与实测值之间的最佳逼近，确定物体变物性导热系数的参数估算方法，对角膜的导热系数进行了测定，在角膜冻干的温度区间内，角膜的导热系数可近似地表示为λ=0.10395+2.75156×〓。

The method of calculating the perturbed Chebyshev-Padé approximation is proposed for not only the general situation but also some special cases, i.e., an odd function and an even one.

提出了一种新的带有扰动的Chebyshev-Padé逼近，它依赖于一个扰动参数，其优点在于：它可以通过调整扰动参数来提高逼近的精度。

Because of the cost of computation,the order of the approximation surface usually is below four.

在对采样点构建插值曲面时，响应面法（Response Surface Method，RSM）通常是对整个曲面进行插值近似，由于计算量的原因，采用的近似曲面阶数通常不超过四阶。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了