英语释义

1. any of a sequence of differences obtained by incrementing successively the dependent variable of a function by a fixed amount especially any of such differences obtained from a polynomial function using successive integral values of its dependent variable

片语

finite-difference modeling有限差分模拟

finite-difference quotient有限差分商

finite temperature difference有限温差

finite-difference tomography有限差分层析成像

lagrangian finite-differenceLagrangian有限差分法

finite element difference method有限元差分法

formula finite-difference有限差公式

英汉例句

• finite difference method is employed to analyze soil-arching effect on passive piles.

  采用三维有限差分法，分析了被动受荷桩的成拱效应。

• but this partial differential equation can not be directly integral, so usually use navier method, rayleigh ritz method and finite difference method and other methods.

  但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。

• base on the fourier law and conservation of energy, and combine the finite difference, this dissertation deduce finite difference temperature model.

  以傅里叶定律和能量守恒定律为基础，结合有限差分理论推导出有限差分温度计算模型。

• the results of transient temperature field calculated by finite difference method and ansys software agree with the experimental results.

  高压氮气淬冷温度场的有限差分法计算结果和ansys有限元分析软件计算结果与实测结果吻合较好。

• it is briefly introduced that three-dimensional finite difference numerical equation is built according to darcy's law and water equilibrium principle.

  又简介根据达西定律和水均衡原理，建立了三维有限差分数值方程及其解法。

• the finite difference method was used to discretize and solve the two phase energy equations.

  采用有限差分法对两相能量方程进行离散求解。

• this paper investigates an efficient design procedure integrating the genetic algorithm (ga) with the finite difference time domain (fdtd) for the fast optimal design of smart antenna array (saa).

  研究了遗传算法（ga）和时域有限差分法（fdtd）结合来优化智能天线阵列。

• authors described and analyzed the finite difference method and finite element method.

  作者阐述并分析了有限差分方法和有限元方法。

• the near field distribution of uncoated and metal coated fiber optic probes were characterized by the method of three dimensional finite difference time domain (fdtd).

  采用三维时间域有限差分（fdtd）方法研究了扫描近场光学显微镜中光纤微探针的近场分布特性。

• the implicit finite difference method with variable time step was applied to calculate the tissue temperature and the thermal stress fields induced in three region thawing process.

  采用隐式有限差分法计算三区域复温过程中的温度场和应力场。

• several simulation methods, such as finite difference method, finite element method, boundary element method and random choice method and their related applications are introduced in detail.

  重点介绍了几种常用的数值计算方法：有限差分法、有限元法、边界元法和随机选择法及它们的应用。

• compared with finite element method and finite difference method, boundary integral equation method is computationally more efficient.

  与有限元法和有限差分法相比，该方法具有更高的计算效率。

• numerical solution is given to mathematical model of formation temperature field by full implicit finite difference method.

  并利用有限差分方法，对温度场数学模型进行数值求解。

• it is one of approaches for unsteady inverse problems of oscillating airfoil to solve unsteady bluer equations with finite difference method.

  利用有限差分法解非定常欧拉方程是振蕩机翼非定常气动反问题的一种求解方法。

• the numerical schemes of dns are based on finite difference methods.

  dns的数值方法基于有限差分法。

• according to geologic model of unsteady groundwater flow in heterogeneous medium and adopting the finite difference solution, the direction and strength of oil gas migration can be quantified.

  根据非均匀各向异性地层的非稳定的地下水流动模型，采用有限差分法求解，可以定量判断油气运移的方向及强度。

• in order to investigate and develop numerical calculation method for schr odinger equation, we apply the finite difference method to eigenvalue problems in quantum mechanics.

  为研究和发展薛定谔方程的数值计算方法，本文将有限差分法应用到量子力学求解薛定谔方程本征值问题。

• the time domain finite difference and the finite element method are more convenient.

  有限差分法和有限单元法在时间域里更为方便。

• the results of the precise integration method agree well with the theoretical solution and have higher precision than those of the finite difference method.

  数值算例表明，用精细积分法得到的解与精确解十分吻合，比有限差分法具有更高的精度。

• at the same time, based on the result, it is concluded that the upwind finite difference scheme for solving the one dimensional heat transfer equation for sg is stable.

  同时，根据这个结果分析得到了求解蒸汽发生器一维传热方程的逆风有限差分格式是稳定的。

• by using an explicit finite difference program flac3d, a model of numerical calculation is established for a deep mining pillar with dynamic disturbance under high stress.

  对深部矿柱在承受高静载应力时的动力扰动力学模型进行应力波传播力学响应分析，采用flac3d有限差分程序对深部开采圆形矿柱进行高应力下动力扰动数值计算。

• in solving the mathematical model, two time-saving and effective numerical methods have been tested and compared with the finite difference method commonly used.

  对动态数学校型的数值求解，试验了两种颇为有效的方法，并将这两种方法和常用的有限差分方法作了比较。

• the system can achieve the temperature parameters of the collection, storage, analysis and control functions, and pass the furnace temperature finite difference simulation product quality forecasts.

  该系统可实现温度参数的采集、存储、分析与控制功能、并能通过炉内温度场的有限差分模拟进行产品质量预测。