查询词典 numerical system

After introducing some basic results from ergodic theory, two probIems related to the dynamical system are studied: first the existence of absolute continuous invariant measures, and then their computation. They correspond to the functional analysis and numerical analysis of the Frobenius-Perron operator associated with the dynamical system.

首先介绍了遍历理论的一些经典结果；然后着重研究了对应于混沌映射的绝对连续不变测度的存在性与计算问题，这归结于相应的Frobenius-Perron算子的泛函分析与数值分析；最后《确定性系统的统计性质》介绍了Shannon熵、Kolmogorov熵、拓扑熵以及Boltzmann熵，并给出了不变测度的一些最新应用。

D laser scan system is important one of r ev erse engineering, it is a compositive system,including numerical control,laser ,CAD/CAM,precise mechanism,computer,image collection and image processing.

三维激光扫描系统是反求工程的重要组成部分，是集数控、激光、CAD/CAM、精密机械、计算机图像采集与处理为一体的集成系统，它主要由运动控制、图像采集、图像处理、三维重构等几大部分组成。

Based on Kane's dynamics theory of multiple rigid body, the firing dynamic model was established for the coupling system of firer and rifle, and dynamic numerical simulation of the system was carried out. The launching motion parameters of equivalent bodies of firer and rifle were obtained.

基于凯恩多刚体动力学理论，建立了射手与步枪系统的发射动力学模型，进行了高频点射步枪人机耦合系统发射动力学的数值仿真，得到了射手及步枪等效体在发射过程中的运动参数。

In introducing open NC system software, the article, by using a C ++ Builder programming language to open examples of numerical control system based on the GT400-SV motion controller of Googol Technology, expounded the interface on the planning, interface design process and The real-time display methods of coordinate trajectory, and focused on the main functions of the module method.

文章在介绍开放式数控系统软件方面，以一个采用C++ Builder编程语言构建了基于固高GT400 SV 运动控制器的开放式数控系统的实例，论述了界面规划、界面设计过程及坐标运动轨迹的实时显示方法等，着重讨论了主要功能模块的实现方法。

Based on matrix disterbance theory, a new numerical calculation method to determine system observability of each state through system observability matrix sin gular value decomposition is proposed. This method is applied in flight trans fer alignment and integrated navigation filter design successfully.

提出了应用系统观测矩阵奇异值分解确定滤波器中各状态变量可观性强弱的一种方法，并在系统的飞行传递对准和组合导航滤波器的设计中得到了成功的应用。

The numerical control part uses Hypertherm Automation EDGE or CMC BURNY. The cutting system is Hypertherm HD3070、HD4070 and HPR130 Hydefinetion plasma machine, the Torch Height Control System is HYPERTHERM COMMAND THC.

数控系统采用美国海宝自动化公司EDGE数控系统或美国CMC公司BURNY数控系统；等离子切割系统采用美国海宝HPR260及HPR130高精细等离子电源；调高装置采用美国海宝COMMAND THC自动弧压高系统。

This paper introduces the simulation method and advanced computer technology combining with ship statics principle into cargo shipment of bulk grain carrier,and develops loading simulation system of the bulk grain carrier. And introduce the principle of system and method of implement particularly. This Paper describes the relating high precision calculation algorithms of the stability,trim and strength calculation used by the loading software in detail,focuses on the algorithms of numerical value integral and curve difference and imitate algorithms.

另外，本文还引入模拟的方法，采用先进的计算机技术，结合船舶静力学原理和散装谷物船舶稳性校核的特殊要求，开发了散装谷物船舶的装载模拟系统，并详细介绍了该系统的原理和实现方法，在计算方法上，采用了高精度的浮态、稳性、和强度的计算方法。

Water-jet cutting system based on phased intensifier and open numerical control system was designed.

本文是对箱式水射流切割系统中的增压器和机器人部分进行了详细的研究。

A numerical experiments to forecast a squall line storm system passing through the Oklahoma State is performed by using the Advanced Regional Prediction System developed by the Center for Analysis and Prediction of Storms at the University of Oklahoma in the United States.

运用美国风暴分析预报中心的改进的区域系统模式对移经美国俄克拉何马州的一个强雷暴系统进行了数值预报试验，结果表明，初始场中引入多普勒雷达观测资料后明显地改进了预报。

Come to the system control to Several steady state required minimum pinning density and the relationship between system parameters and coupling efficiency of the gradient to control the impact of, and gives numerical examples.

得出将系统控制到几种稳定状态所需要最小钉扎密度与系统参数间的关系和耦合梯度对控制效率的影响，并给出了数值验证。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。