查询词典 numerical system

The example of a numerical prediction model shows the basic method of developing adjoint assimilation system of numeric predict model.

而后以一个数值预报模式为例，说明了构造伴随模式同化系统的基本方法。

The quadratic polynomials and Kriging method are employed to construct the response surface separately, Numerical results indicate that the forebody and afterbody designed by us is of simple configuration, not only can it ensure the efficiency of propulsion system, but also have a better aerodynamic performance.

响应近似模型分别采用了二次多项式和kriging方法来构造，结果表明由本文设计的前后体外形结构简单，不仅能确保推进系统的工作效率，而且具有更好的气动性能。

Especially in the field of elevator, numerical control machine tool etc., the traditional decelerater-electrical motor drive mode are now gradually replaced by the integrated drive system that is built up power electronic-electrical motor-mechanical load with center of micro-electronic info processor. The main study objects of this item are the gearless elevater traction drive system.

尤其在电梯和数控机床等低速大扭矩驱动领域中，以电子信息处理技术为核心与电力电子电源-电动机-机械负载组成融为一体的闭环无级变速系统，正在逐步取代传统的减速机-电动机驱动模式。

Controling the system adopted 889 C51ses single slice machine as the CPU of system, spreading the position variety of the feeling method examination pot by electric control valve apacity type, position variety to should of the amount of emulation make use of A/D a conversion to get into CPU to carry on a control to the fuel control valve moderate breezes door switch for the numerical quantity.

控制系统采用了8位89C51单片机作为系统的CPU，以电容式传感方式检测锅的位置变化，位置变化对应的模拟量利用A/D转换为数字量进入CPU对燃料控制阀和风门开关进行控制。

This system can be applied to all kinds of control system such as numerical control carving machine and laser punching machine.

可应用于各种数控雕刻机、激光打孔机等控制系统。

Based on the water environment spatial data mining and visualization method, the paper presents these main characteristics and innovations:①Measurement of contamination fluxes:A scene-based research strategy is proposed:measurement /water quality analysis→flow field simulation→contamination transformation rule→fluxes scene simulation→temporal-spatial rule analysis.②Serial numerical models of water environment in the Qiantang River:The controlled equations of the flow field model of the main river,united controlled equations of the main contamination fluxes and water quality prediction model at emergent time are set up.③GIS-based water quality and contamination fluxes decision-making assistance system:A water environment database has been set up;based on MapX and C#.net platform,a system has been developed to facilitate visual inquiry,decision-making and graphics export.

本文基于水环境空间数据挖掘与可视化的研究方法与体系，研究中的主要特色与创新点为：①河流污染物通量测算的技术与方法：提出了基于工况测量/水质分析→流场模拟→污染规律解析→通量情景模拟→时空规律分析的研究方案；②钱塘江水环境模拟系列数学模型：建立了钱塘江干流研究区域流场数学模型的控制方程、主要污染物通量模型的联合控制方程、突发污染事故水质预报模型的基本方程；③基于GIS的水质预报与污染物通量决策支持系统的研发：建立水环境时空数据库，基于MapX和C#。net平台进行系统的构建与开发，为研究的系列成果提供可视化的查询、决策与图形输出。

In order to understand the swirl system deeply,the three-dimensional particle dynamic analyzer was used to measure the velocities of the steady turbulent cold flows in the swirl three-branched modular junction located at the end of the exhaust system,and three-dimensional numerical simulation of the flows was carried out by use of the ALE algorithm.

为了深入研究螺旋流排气系统的工作机理，作者利用三维粒子动态分析仪(3D-PDA)，对一始端螺旋流三分支模件的稳态湍流流场进行了测量，并用ALE法进行了三维流动数值模拟。

This peper introduces the self-checking short shunt circuit is the current railway system to assuce safe running' Take the Polar frequency autornatic blocking system for example, the feasibility and reliability of this method are analyzed by Numerical simulation.

以铁路信号制式中的极频自动闭塞系统为例，利用数字仿真方法分析这种措施的可行性及可靠性。

According to the systematic method, the snow-covered boundary layer is considered as a micro-climate system, and a numerical model is used to simulate the major variations in the system.

本文用系统论的方法，将雪边界层抽象为雪边界层微气候系统，并用数值的方法模拟了该系统内的主要变化过程。

TELEMAC System is a numerical modelling system for free surface hydrodynamics, water quality and sedimentology etc, popular in Europe but not introduced in China.

TELEMAC系统是一套用于自由表面流的水动力、水质、沉积等的模型系统，在欧洲应用普遍但还未进入中国。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。