查询词典 numerical calculation

Under the frame of Hamiltonian, the propagation of seismic wave is a symplectic group transformation with one parameter and consequently, the numerical calculation methods of the propagation ought to be symplectic method.

在哈密顿表述下，地震波标量方程描述的波场随时间的演化过程为波场在单参数辛群作用下的变换过程。因而在计算地震波场随时间的演化时，为保持系统的辛性质，应采用辛几何算法。

If without dissipation, the propagation is essentially a symplectic transformation with one parameter, and, consequently, the numerical calculation methods of the propagation ought to be symplectic, too.

至今 ，已发展起来了许多方法，如计算走时的射线追踪法，计算全波场的有限差分法和有限元法等[1— 5 ]，以及随后发展起来的其他方法，如傅立叶变换法[6 ]、小波变换法[7，8]和各种结合算法[9，10 ]等。

With the numerical calculation,the two phase media equoconcentration distribution map and t...

研究结果表明，数值计算得到的各种图完全符合已知的旋流器流场分布规律。

The calculated results match the test results.The numerical calculation has some significance to this equipment's design and improvement.

数值计算与测试结构相符，说明数值计算对此类设备的设计和改进有一定指导意义

In this paper,according to optical basic theory, an analytical solution for nonlinearity of the scanning with tetrahedral column rotation mirror is obtained, and a numerical calculation is made to gain a analysis.

从光学基本原理出发，得到了四面柱体转镜扫描的非线性解析解，并进行了数值计算，从而给出了四面柱体转镜扫描的非线性曲线。

The results of numerical calculation given in this paper shows that the theore tical conclusions are correct.

通过算例验证，表明本文的理论预测是正确的。

The numerical calculation shows that the space distibution of the electromagnetic field in each sub-micro-layer changes with the varing transmission depth in the relief grating, the space distribution in each sub-micro-layer is uniformer than that in isotropic grating and the optical parameters of the anisotropic relief grating and the incident beam have a large impact on the space distribution of the electromagnetic field in relief grating and so on.

数值计算表明，光波场光强的空间分布随透射深度的变化而变化，各向异性介质光栅体内光波场的空间分布相对各向同性介质要均匀，光栅材料的性质参数和光束的入射参数对光波场光强的空间分布有较大的影响等。

Compared with normal triaxial test results, triaxial tests and numerical calculation of simulating deep excavation have been studied.

对比常规三轴试验方法，对基坑开挖过程进行了试验和数值模拟。

Turbojet engine ; Axial flow compressor ; Aerodynamic characteristic ; Numerical calculation

涡轮喷气发动机；轴流式压缩机；气动特性；数值计算

A lot of accomplishments have been achieved since the numerical calculation was used in the research for new kind of twin-screw elements.

用数值计算的方法进行新型螺杆元件研究，已经取得了一些成绩。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。