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- direct numerical integration 直接积分法
- Total load was then obtained by graphical or numerical integration. 然后，通过图解积分或数值积分可求得总载荷。
- Numerical integration of ordinary integrals and line integrals. 一般的积分以及线积分的数值积分。
- J.Kim,R.D.Moser,P.Moin,Direct numerical simulation of curved turbulence channel flow.NASA TM285974,1984. 董耀华.;弯道水流的基本特性及数值模拟[J]
- A study of particle behavior in homogeneous isotropic turbulence using direct numerical simulation is presented. 本文对三维气粒两相均匀各向同性湍流进行了直接数值模拟。
- These have been developed by the numerical integration of the differential equations of gas motion for a spherical blast wave in air. 这些都是根据空中球形爆震波气体运动的微分方程的数值积分得到的。
- The element free Galerkin method (EFG) was used in the direct numerical simulation of multiphase flows. 摘要采用无网格伽辽金法对多相流动中的颗粒运动进行了直接数值模拟。
- The relativistic Emden functions for n < 0 are obtained by numerical integration. 通过数值积分得到了n<0的相对论性Emden函数。
- Further tabulations, of relevance in statistics and numerical integration, have been added. 用统计和数值积分的关联性的更进一步的制表，已经被增加。
- The wire frame format is also well suited and widely used in programming tool paths for DNC (Direct Numerical Control) machine tools. 线框模型格式也非常适合于数控机床中的路径编程，并且已经在那个领域得到了广泛应用。
- Use the numerical integration solution based on radiometry and the ray tracing simulation result to do curve fitting. 非线性光波导是指光波导结构中含有折射率会随电场强度而改变的介质。
- In direct numerical control (DNC), as originally conceived and developed in the 1960's, several machines are directly controlled step by step by a central mainframe computer. 在直接数字控制（DNC）中，由于最初的构思和20世纪60年代的发展，几台机器被一台中央主机计算机逐步地直接控制。
- The famous Simpson Formula in numerical integration is generalized, and the asymptotic properties of mean value is discussed. 推广了数值积分中著名的辛普生公式,讨论了中值点的渐近性。
- The generation and evolution of turbulent spots using the wall impulse model in the plane Couette flow are studied by direct numerical simulation of Navier-Stokes equations. 湍流斑是近壁剪切流动中的重要现象,它们的生成和发展与流动转捩和湍流的形成密切相关。
- By using the adaptive digitalfiltering method,numerical integration of responsing field of the sonde in plane stratified media has been carried out. 本文采用自适应滤波法对线圈系在平面成层介质中的响应场进行快速求解；
- For structure optimizations, it is often best to use a Fine numerical integration grid for both Medium and Fine quality calculations. 对于结构的优化，中等和高质量计算最好是使用一种精密的网格数值积分进行。
- Data must be sampled from input signals and incorporated into the numerical integration algorithm to calculate the state variables. 外部数据必须从输入信号中采集，并融入到数值积分算法中以计算出状态变量。
- Abstract : The two frequency method for measurring corrosion reaction resistance based on a. c. impedance and numerical integration has been proposed. 摘要 ： 提出了基于交流阻抗和数值积分原理的二点频率法。
- The construction of boundary type cubature is a problem that has been noticed for a very long time in numerical integration. 边界型求积公式是数值积分法研究方向早就被注意的问题。
- A new numerical integration scheme is used for crack-tip element and element intersected by the discontinuity, and it is convenient and can save time. 文中采用一种新的积分方案对裂尖和裂缝贯穿单元进行积分，既方便积分，又可以减少计算量。
