查询词典 numerical system

Based on the beam element, one dimension numerical model of the exhaust system is established.

由于车辆排气系统结构的复杂性，无法直接采用传统的振动理论模型给予描述。

As it communicates, the numerical value of the aperture of the projection optical system scanner composes 1,30 maximum value on the branch as a whole.

因为它传达的数值孔径投影光学系统的扫描仪构成1，30 最大的价值的分支机构作为一个整体。

The method using microcomputer to draw the phase graph of autonomous system on plane of ordinarily differential equation is studied,first a large number of data of orbit are obtained by an appropriate method of numerical calculation from known initial condition,then computer draw the curve of orbit on screen by these data.

研究利用微机绘制常微分方程平面自治系统相图的方法，首先用一种合适的数值算法由已知的初始条件得到轨线的大量数据，再利用这些数据在计算机屏幕上画出轨线的图形。

Using the National Center for Atmospheric Research Community Climate System Model(CCSM 2.01),a set of numerical experiments were conducted to examine dependence of the orbital-scale climate variability over the Qinghai-Xizang Plateau region on the orography by changing the plateau topography and the Earth′s orbital parameter.

利用美国大气研究中心的公用气候系统模式(CCSM2.01)进行了一组改变青藏高原地形高度和地球轨道参数的数值模拟试验，以探讨青藏地区地球轨道和地形变化对高原气候的影响。

Using the National Center for Atmospheric Research Community Climate System Model （CCSM 2.01）, a set of numerical experiments were conducted to examine dependence of the orbitalscale climate variability over the Qinghai Xizang Plateau region on the orography by changing the plateau topography and the Earth＇s orbital parameter.

利用美国大气研究中心的公用气候系统模式（CCSM2.01）进行了一组改变青藏高原地形高度和地球轨道参数的数值模拟试验，以探讨青藏地区地球轨道和地形变化对高原气候的影响。

The 2-D average water depth mathematical model in orthogonal curve-linear coordinate system is used for the numerical simulation.

应用正交曲线坐标系下的二维水深平均数学模型，对大扩散角的正向泵站前池中设置隔墩前后的流态进行了数值模拟，以分析设置隔墩的整流效果。

A calculation model is established for the corrugation and annular flow field of a stratification injection allocator by using 3D Max and it is put into VR environment of PHOENICS and based on the actual geometric size of the allocator,κ-ε turbulent calculating model is used for numerical calculation of water medium flow field by using orthogonal and detail grid under coordinate system.

用3D Max建立了分层配注器波纹环空流场的计算模型，调入PHOENICS的VR编辑环境中，根据实际配注器的几何尺寸，在柱坐标系下，采用局部加密正交网格，应用k-ε湍流计算模型对水介质流场进行了数值计算，给出流场的速度分布与压力分布曲线，并对比分析了3种形状的波纹环空流场的数值计算结果。

The numerical simulation of velocity field and temperature field of the office using hot-water floor panel heating system is carried out.

对采用热水地板辐射供暖系统的办公室的速度场、温度场进行了数值模拟，室内气流分布比较均匀，没有吹风感觉，竖直方向温度梯度较小，热舒适度较好。

The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

AWG光信号传输特性与相关参数的分析，为进一步优化设计AWG及提高其性能提供了理论依据，而优化设计计算数值方法解决了AWG优化设计计算的复杂问题，为进一步建立AWG的计算机设计系统提供了基础；AWG光信号处理的特性分析，提出了AWG应用的新领域，为光信号的傅立叶变换、串并传输、循环移位、矩阵变换、微分处理等提供了一条途径；波长传输矩阵变换关系的建立，不仅得到了确定多路AWG每路信号从输入端口到输出端口的准确输出位置的方法，而且在分析应用AWG实现复杂的光通信网络路由的连接、特别在设计分插复用器和交叉连接器等网络节点时有重要的作用，能有效而准确地确定波长的路由关系，为实现节点波长传输路由的监控和管理提供有效手段；基于AWG的OXC结构和波长路由的确定为实现OXC技术、特别是多路多波长的OXC和光网络的智能节点技术提供了有效的方法；控制平面的特征、路由器、流量工程、程序及改进的波长路由算法的研究实现了基于GMPLS的OXC光传送网络的控制平面，为建立自动交换光网路提供了一定的基础；时频分析可以更直观和更清晰地描述脉冲信号在单模光纤中传输色散和能量的变化，为色散积累和色散补偿提供有效的分析参数。

This paper proposes two different interpolation algorithms for parametric curve. These algorithms are of great value to improve the accuracy and machining speed of numerical control system.

本文介绍了参数曲线的两种不同的实时插补算法，它们在提高数控系统的速度和精度方面具有很好的效果。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。